Sin 150 degrees in fraction

Answer: sin (37°) = 0.6018150232. Note: angle unit is set to degrees. Use our sin (x) calculator to find the sine of 37 degrees - sin (37 °) - or the sine of any angle in degrees and in radians.

Trigonometry. Find the Exact Value sin (630) sin(630) sin ( 630) Remove full rotations of 360 360 ° until the angle is between 0 0 ° and 360 360 °. sin(270) sin ( 270) Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because sine is negative in the third quadrant.Search for the angle 150 ° 150\degree 150°. As we learned before – sine is a y-coordinate, so we take the second coordinate from the corresponding point on the unit circle: sin ⁡ ( 150 ° ) = 1 2 \qquad \sin(150\degree) = \frac{1}{2} sin ( 150° ) = 2 1The integral of sin^2 is one-half of x, minus one-eighth of the sine of 4x, plus a constant. Using mathematical notation, the integral of sine squared can be written as sin^2 x dx ...Algebra. Fraction Calculator. Step 1: Enter the fraction you want to simplify. The Fraction Calculator will reduce a fraction to its simplest form. You can also add, subtract, multiply, and divide fractions, as well as, convert to a decimal and work with mixed numbers and reciprocals. We also offer step by step solutions.I won’t use this space to dissuade anyone from launching a startup, but founders should embrace the fact that investors are looking for reasons not to give you money these days. Pe...

Tap for more steps... −1 2 - 1 2. The result can be shown in multiple forms. Exact Form: −1 2 - 1 2. Decimal Form: −0.5 - 0.5. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.A tangent of an angle α is also equal to the ratio between its sine and cosine, so tanα = sinα / cosα. Following from the definition, the function results in an undefined value at certain angles, like 90°, ... Our tangent calculator accepts input in degrees or radians, so assuming the angle is known, ... 150 ° 5π/6-0.577350: 180 ...a unit of plane angular measurement that is equal to the angle at the center of a circle subtended by an arc whose length equals the radius or approximately 180°/π ~ 57.3 degrees. secant. the length of the hypotenuse divided by the length of the adjacent side. Also equals 1/cos (θ) sin. sin (θ) is the ratio of the opposite side of angle θ ...a unit of plane angular measurement that is equal to the angle at the center of a circle subtended by an arc whose length equals the radius or approximately 180°/π ~ 57.3 degrees. secant. the length of the hypotenuse divided by the length of the adjacent side. Also equals 1/cos (θ) sin. sin (θ) is the ratio of the opposite side of angle θ ...Answer: cos (150°) = -0.8660254038. cos (150°) is exactly: -√3/2. Note: angle unit is set to degrees. Use our cos (x) calculator to find the cosine of 150 degrees - cos (150 °) - or the cosine of any angle in degrees and in radians.Sin 150° in fraction: 1/2; Sin (-150 degrees):-0.5; Sin 150° in radians: sin (5π/6) or sin (2.6179938 . . .) What is the Value of Sin 150 Degrees? The value of sin 150 degrees in decimal is 0.5. Sin 150 degrees can also be expressed using the equivalent of the given …

To find the value of sin 225 degrees using the unit circle: Rotate ‘r’ anticlockwise to form a 225° angle with the positive x-axis. The sin of 225 degrees equals the y-coordinate (-0.7071) of the point of intersection (-0.7071, -0.7071) of unit circle and r. Hence the value of sin 225° = y = -0.7071 (approx)For sin 0 degrees, the angle 0° lies on the positive x-axis. Thus, sin 0° value = 0. Since the sine function is a periodic function, we can represent sin 0° as, sin 0 degrees = sin (0° + n × 360°), n ∈ Z. ⇒ sin 0° = sin 360° = sin 720°, and so on. Note: Since, sine is an odd function, the value of sin (-0°) = -sin (0°) = 0. Method 2. By using the value of cosine function relations, we can easily find the value of sin 120 degrees. Using the trigonometry formula, sin (90 + a) = cos a, we can find the sin 120 value. As given, sin (90° +30°) = cos 30°. It means that sin 120° = cos 30°. We know that the value of cos 30 degrees is √3/2. Refer to explanation We have that sin(150)=sin(180-30)=sin30=1/2 csc(150)=1/sin(150)=2 cos (150) = –cos(30) =-sqrt3/2 sec(150) = 1/cos(150)=-2/sqrt3 tan(150)=-tan ...

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Trigonometry. Find the Exact Value cos (150) cos (150) cos ( 150) Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because cosine is negative in the second quadrant. −cos(30) - cos ( 30)For sin 210 degrees, the angle 210° lies between 180° and 270° (Third Quadrant ). Since sine function is negative in the third quadrant, thus sin 210° value = - (1/2) or -0.5. Since the sine function is a periodic function, we can represent sin 210° as, sin 210 degrees = sin (210° + n × 360°), n ∈ Z. ⇒ sin 210° = sin 570° = sin ...Cos 15° in fraction: (√6 + √2)/4; Cos (-15 degrees): 0.9659258. . . Cos 15° in radians: cos (π/12) or cos ... cos 150 degrees; cos 140 degrees; cos 144 degrees; cos 720 degrees; ... (1 - sin²(15°)). Here, the value of sin 15° is equal to (√6 - √2)/4.Why Sin 30 is equal to Sin 150. The value of sin 30 degrees and sin 150 degrees are equal. Sin 30 = sin 150 = ½. Both are equal because the reference angle for 150 is equal to 30 for the triangle formed in the unit circle. The reference angle is formed when the perpendicular is dropped from the unit circle to the x-axis, which forms a right ...

InvestorPlace - Stock Market News, Stock Advice & Trading Tips Environmental, social, governance (ESG) investing has been a major theme in rec... InvestorPlace - Stock Market N...To find the value of cos 135 degrees using the unit circle: Rotate ‘r’ anticlockwise to form 135° angle with the positive x-axis. The cos of 135 degrees equals the x-coordinate (-0.7071) of the point of intersection (-0.7071, 0.7071) of unit circle and r. Hence the value of cos 135° = x = -0.7071 (approx)= cos (90°+150°) = cos 240°. = sin (180°+150°) = sin 330°. Note that sin150° is periodic: sin (150° + n × 360°) = sin 150 degrees, n ∈ Z. There are more formulas for …Many brokerages will allow you to buy and sell fractional shares in exchange-traded funds, which can be a handy way to invest if you don't have much money available to put into the...What is the value of sin(150) ? The value of sin(150) is 1/2 Study Tools AI Math Solver Popular Problems Worksheets Study Guides Practice Cheat Sheets Calculators Graphing Calculator Geometry CalculatorThe US government is set today to officially label Boko Haram, a Nigerian Islamist group, a ”foreign terrorist organization.” That means authorities would have the power to block f...Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.Find the Exact Value sin(210) Step 1. Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because sine is negative in the third quadrant. Step 2. The exact value of is . Step 3. The result can be shown in multiple forms. sin(250) sin ( 250) The result can be shown in multiple forms. Exact Form: sin(250) sin ( 250) Decimal Form: −0.93969262… - 0.93969262 …. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. Step 1: Plug the angle value, in degrees, in the formula above: radian measure = (150 × π)/180. Step 2: Rearrange the terms: radian measure = π × 150/180. Step 3: Reduce or simplify the fraction of π if necessary. Calculating the gcd of 150 and 180 [gcd(150,180)], we've found that it equals 30. a unit of plane angular measurement that is equal to the angle at the center of a circle subtended by an arc whose length equals the radius or approximately 180°/π ~ 57.3 degrees. secant. the length of the hypotenuse divided by the length of the adjacent side. Also equals 1/cos (θ) sin. sin (θ) is the ratio of the opposite side of angle θ ...Sin 60° in fraction: √3/2; Sin (-60 degrees):-0.8660254. . . Sin 60° in radians: sin (π/3) or sin ... (90° + 60°) = -cos 150° Sin 60 Degrees Using Unit Circle. To find the value of sin 60 degrees using the unit circle: Rotate ‘r’ anticlockwise to form a 60° angle with the positive x …

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Cos 30 degrees is written as cos 30° and has a value in fraction form as √3/2. Cos 30° = √3/2. Cos 30° = √3/2 is an irrational number and equals to 0.8660254037 (decimal form). Therefore, the exact value of cos 30 degrees is written as 0.8660 approx. √3/2 is the value of Cos 30° which is a trigonometric ratio or trigonometric ...sin(225°) sin ( 225 °) Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because sine is negative in the third quadrant. −sin(45) - sin ( 45) The exact value of sin(45) sin ( 45) is √2 2 2 2. − √2 2 - 2 2. The result can be shown in multiple forms.For sin 90 degrees, the angle 90° lies on the positive y-axis. Thus, sin 90° value = 1. Since the sine function is a periodic function, we can represent sin 90° as, sin 90 degrees = sin (90° + n × 360°), n ∈ Z. ⇒ sin 90° = sin 450° = sin 810°, and so on. Note: Since, sine is an odd function, the value of sin (-90°) = -sin (90°). Trigonometry. Find the Exact Value sin (105) sin(105) sin ( 105) Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. sin(75) sin ( 75) Split 75 75 into two angles where the values of the six trigonometric functions are known. sin(30+45) sin ( 30 + 45) Click here👆to get an answer to your question ️ how do you find the value oftan 150The value of cot 150 degrees can be calculated by constructing an angle of 150° with the x-axis, and then finding the coordinates of the corresponding point (-0.866, 0.5) on the unit circle. The value of cot 150° is equal to the x-coordinate (-0.866) divided by the y-coordinate (0.5). ∴ cot 150° = -1.7321. Download FREE Study Materials.To find the value of cos 135 degrees using the unit circle: Rotate ‘r’ anticlockwise to form 135° angle with the positive x-axis. The cos of 135 degrees equals the x-coordinate (-0.7071) of the point of intersection (-0.7071, 0.7071) of unit circle and r. Hence the value of cos 135° = x = -0.7071 (approx)For sec 15 degrees, the angle 15° lies between 0° and 90° (First Quadrant ). Since secant function is positive in the first quadrant, thus sec 15° value = √6 - √2 or 1.0352761. . . ⇒ sec 15° = sec 375° = sec 735°, and so on. Note: Since, secant is an even function, the value of sec (-15°) = sec (15°).17 best hotels in Las Vegas, from large casinos to iconic residences. With more than 150,000 hotel rooms, Las Vegas is home to many top-notch hotel choices. Whether you’re after a ...

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Answer: sin (45°) = 0.7071067812. sin (45°) is exactly: √2/2. Note: angle unit is set to degrees. Use our sin (x) calculator to find the exact value of sine of 45 degrees - sin (45 °) - or the sine of any angle in degrees and in radians.The value of cot 150 degrees can be calculated by constructing an angle of 150° with the x-axis, and then finding the coordinates of the corresponding point (-0.866, 0.5) on the unit circle. The value of cot 150° is equal to the x-coordinate (-0.866) divided by the y-coordinate (0.5). ∴ cot 150° = -1.7321. Download FREE Study Materials.The formula to convert radians to degrees: degrees = radians * 180 / π What is cotangent equal to? The cotangent function (cot(x)), is the reciprocal of the tangent function.cot(x) = cos(x) / sin(x) To find the value of tan 150 degrees using the unit circle: Rotate ‘r’ anticlockwise to form 150° angle with the positive x-axis. The tan of 150 degrees equals the y-coordinate (0.5) divided by x-coordinate (-0.866) of the point of intersection (-0.866, 0.5) of unit circle and r. Hence the value of tan 150° = y/x = -0.5774 (approx). Sin 150° in fraction: 1/2; Sin (-150 degrees):-0.5; Sin 150° in radians: sin (5π/6) or sin (2.6179938 . . .) What is the Value of Sin 150 Degrees? The value of sin 150 degrees in decimal is 0.5. Sin 150 degrees can also be expressed using the equivalent of the given …Advertisement The various components of crude oil have different sizes, weights and boiling temperatures; so, the first step is to separate these components. Because they have diff...Trigonometry is a branch of mathematics concerned with relationships between angles and side lengths of triangles. In particular, the trigonometric functions relate the angles of a right triangle with ratios of its side lengths. The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical ...Sin 2x = 2 sin x cos x In the same way, we can derive other values of sin angles like 0°, 30°,45°,60°,90°,180°,270° and 360°. Below is the trigonometry table, which defines all the values of sine along with other trigonometric ratios. For sin 210 degrees, the angle 210° lies between 180° and 270° (Third Quadrant ). Since sine function is negative in the third quadrant, thus sin 210° value = - (1/2) or -0.5. Since the sine function is a periodic function, we can represent sin 210° as, sin 210 degrees = sin (210° + n × 360°), n ∈ Z. ⇒ sin 210° = sin 570° = sin ... Trigonometry. Find the Value Using the Unit Circle sin (150) sin(150) sin ( 150) Find the value using the definition of sine. sin(150) = opposite hypotenuse sin ( 150) = opposite hypotenuse. Substitute the values into the definition. sin(150) = 1 2 1 sin ( 150) = 1 2 1. Divide 1 2 1 2 by 1 1. 1 2 1 2. ….

Other interesting angles are 30\degree 30° and 60\degree 60°, as they appear in other special right triangles. For these angles, we have the sine of 30 and the …Explanation: For sin 240 degrees, the angle 240° lies between 180° and 270° (Third Quadrant ). Since sine function is negative in the third quadrant, thus sin 240° value = - (√3/2) or -0.8660254. . . Since the sine function is a periodic function, we can represent sin 240° as, sin 240 degrees = sin (240° + n × 360°), n ∈ Z.Refer to explanation We have that sin(150)=sin(180-30)=sin30=1/2 csc(150)=1/sin(150)=2 cos (150) = –cos(30) =-sqrt3/2 sec(150) = 1/cos(150)=-2/sqrt3 tan(150)=-tan ...Popular Problems. Precalculus. Find the Value Using the Unit Circle 150 degrees. 150° 150 °. Evaluate cos(150°) cos ( 150 °). Tap for more steps... − √3 2 - 3 2. Evaluate sin(150°) sin ( 150 °). Tap for more steps...Sin 2x = 2 sin x cos x In the same way, we can derive other values of sin angles like 0°, 30°,45°,60°,90°,180°,270° and 360°. Below is the trigonometry table, which defines all the values of sine along with other trigonometric ratios. From the above equations, we get sin 60 degrees exact value as √3/2. In the same way, we can find the values for cos and tan ratios. Therefore, the exact value of sin 60 degrees is √3/2. Cos 0° = Sin 90° = 1. Cos 30°= Sin 60° = √3/2. Cos 45° = Sin 45° = 1/√2. Cos 60° = Sin 30° =1/2. Jul 12, 2019 · In this video, we learn to find the value of sin150. Here I have applied sin(180 - x) = sin(x) identity to find the value of sin(150). The URL of the video e... Sin (-270 degrees): 1 Sin 270 degrees in radians: sin (3/2) = sin (4.7123889 . . .) The angle 270° is already on the negatives y-axis with sin 270 degrees. Therefore, sin 270° values = -1. Because the output waveform is indeed a periodic function, one may write sin 270 degrees as sin (270° + n 360°), n Z. sin 270 degrees = sin 630 degrees ...Precalculus. Find the Exact Value sin (67.5) sin(67.5) sin ( 67.5) Rewrite 67.5 67.5 as an angle where the values of the six trigonometric functions are known divided by 2 2. sin(135 2) sin ( 135 2) Apply the sine half - angle identity. ±√ 1−cos(135) 2 ± 1 - cos ( 135) 2. Change the ± ± to + + because sine is positive in the first quadrant.630-360 = 270 degree. -1 First, sin630^@ means that it makes more than one cycle around the axes. That means that we can subtract one cycle, or 360^@, and the sine of that will still be the same. So: 630^@ - 360^@ = 270^@ At 270^@, the coordinate is on the negative y-axis, or at the coordinate (0, -1). We know that the cosine of an angle is … Sin 150 degrees in fraction, Jan 2, 2024 · Thus, from solving a problem in three different ways and also by a few example problems, we were able to find the value of sin(150°) which turned out to be 0.5 or 1/2 in fraction form. , Trigonometry. Find the Exact Value sin (105) sin(105) sin ( 105) Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. sin(75) sin ( 75) Split 75 75 into two angles where the values of the six trigonometric functions are known. sin(30+45) sin ( 30 + 45), Click here👆to get an answer to your question ️ how do you find the value oftan 150, To find the value of cos 135 degrees using the unit circle: Rotate ‘r’ anticlockwise to form 135° angle with the positive x-axis. The cos of 135 degrees equals the x-coordinate (-0.7071) of the point of intersection (-0.7071, 0.7071) of unit circle and r. Hence the value of cos 135° = x = -0.7071 (approx), The value of cos 300 degrees in decimal is 0.5. Cos 300 degrees can also be expressed using the equivalent of the given angle (300 degrees) in radians (5.23598 . . .) ⇒ 300 degrees = 300° × (π/180°) rad = 5π/3 or 5.2359 . . . Explanation: For cos 300 degrees, the angle 300° lies between 270° and 360° (Fourth Quadrant )., Say the angle of a right angle triangle is at 30 degrees, so the value of the cosine at this particular angle is the division of 0.8660254037 The value of sec 30 will be the exact reciprocal of the value of cos 30. \[cos(30^{o}) = \frac{\sqrt{3}}{2}\] In the fraction format, the value of cos(30°) is equal to 0.8660254037., Crude oil is separated into fractions by a technique called fractional distillation. This technique separates the hydrocarbons into fractions by heating the crude oil to about 400 ..., Answer: sin (135°) = 0.7071067812. sin (135°) is exactly: √2/2. Note: angle unit is set to degrees. Use our sin (x) calculator to find the exact value of sine of 135 degrees - sin (135 °) - or the sine of any angle in degrees and in radians., The value of Sin 150° is ½. The steps involved in the calculation are sin (150°) = sin (180 – 30)° = sin 30° = ½. The explanation of these steps has been provided in the following. …, Answer: cos (150°) = -0.8660254038. cos (150°) is exactly: -√3/2. Note: angle unit is set to degrees. Use our cos (x) calculator to find the cosine of 150 degrees - cos (150 °) - or the cosine of any angle in degrees and in radians., 150° lies in the 2nd Quadrant. Therefore sin (180° – θ) = sin θ. sin (150°) = sin (180° – 30°) sin (150°) = sin (30°) sin (150°) = 1/2 So the exact value of sin 150° is 1/2. Similar Questions. Question 1: Find the value of sin 135°. Solution: Since, we know that sin is positive in the 1st and 2nd Quadrant,, Find the value using the definition of cosine. cos(150°) = adjacent hypotenuse cos ( 150 °) = adjacent hypotenuse. Substitute the values into the definition. cos(150°) = − √3 2 1 cos ( 150 °) = - 3 2 1. Divide − √3 2 - 3 2 by 1 1. − √3 2 - 3 2. The result can be shown in multiple forms. Exact Form: − √3 2 - 3 2., Answer: sin (30°) = 0.5. sin (30°) is exactly: 1/2. Note: angle unit is set to degrees. Online sine calculator. Accepts values in radians and in degrees. Free online sine calculator. sin (x) calculator., InvestorPlace - Stock Market News, Stock Advice & Trading Tips Environmental, social, governance (ESG) investing has been a major theme in rec... InvestorPlace - Stock Market N..., a unit of plane angular measurement that is equal to the angle at the center of a circle subtended by an arc whose length equals the radius or approximately 180°/π ~ 57.3 degrees. secant. the length of the hypotenuse divided by the length of the adjacent side. Also equals 1/cos (θ) sin. sin (θ) is the ratio of the opposite side of angle θ ..., Other interesting angles are 30\degree 30° and 60\degree 60°, as they appear in other special right triangles. For these angles, we have the sine of 30 and the …, Order of Operations Factors & Primes Fractions Long Arithmetic Decimals ... Mixed Number To Improper Fraction Radians to Degrees Degrees to Radians ... sin(150) en ... , The value of sin 60 degrees and other trigonometry ratios for all the degrees 0°, 30°, 45°, 90°,180° are generally used in trigonometry equations. These values are easy to memorize with the help trigonometry table. Let us discuss the value of sine 60 degrees here in this article. Also, read: Sine Function; Sin 0 Degree; Sin 30 Degrees; Sin ..., \sin (x)+\sin (\frac{x}{2})=0,\:0\le \:x\le \:2\pi \cos (x)-\sin (x)=0 \sin (4\theta)-\frac{\sqrt{3}}{2}=0,\:\forall 0\le\theta<2\pi ; 2\sin ^2(x)+3=7\sin (x),\:x\in[0,\:2\pi ] 3\tan …, Find the value using the definition of cosine. cos(150°) = adjacent hypotenuse cos ( 150 °) = adjacent hypotenuse. Substitute the values into the definition. cos(150°) = − √3 2 1 cos ( 150 °) = - 3 2 1. Divide − √3 2 - 3 2 by 1 1. − √3 2 - 3 2. The result can be shown in multiple forms. Exact Form: − √3 2 - 3 2., The integral of sin^2 is one-half of x, minus one-eighth of the sine of 4x, plus a constant. Using mathematical notation, the integral of sine squared can be written as sin^2 x dx ..., Or you can say, the Sine of angle α is equal to the ratio of the opposite side (perpendicular) and hypotenuse of a right-angled triangle. The trigonometry ratios sine, cosine and tangent for an angle α are the primary functions. The value for sin 45 degrees and other trigonometry ratios for all the degrees 0°, 30°, 60°, 90°,180° are ... , It uses functions such as sine, cosine, and tangent to describe the ratios of the sides of a right triangle based on its angles. What are the 3 types of trigonometry functions? The three basic trigonometric functions are: Sine (sin), Cosine (cos), and Tangent (tan)., Sin 750 degrees is the value of sine trigonometric function for an angle equal to 750 degrees. Understand methods to find the value of sin 750 degrees with examples and FAQs. ... Sin 750° in fraction: 1/2; Sin (-750 degrees):-0.5; Sin 750° in radians: sin (25π/6) or sin (13.0899693 . . .), Explanation: For cos 210 degrees, the angle 210° lies between 180° and 270° (Third Quadrant ). Since cosine function is negative in the third quadrant, thus cos 210° value = -√ (3)/2 or -0.8660254. . . Since the cosine function is a periodic function, we can represent cos 210° as, cos 210 degrees = cos (210° + n × 360°), n ∈ Z., Trigonometry. Find the Exact Value sin (105) sin(105) sin ( 105) Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. sin(75) sin ( 75) Split 75 75 into two angles where the values of the six trigonometric functions are known. sin(30+45) sin ( 30 + 45), Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history ... , Answer: sin (115°) = 0.906307787. Note: angle unit is set to degrees. Use our sin (x) calculator to find the sine of 115 degrees - sin (115 °) - or the sine of any angle in degrees and in radians. , For sin 15 degrees, the angle 15° lies between 0° and 90° (First Quadrant ). Since sine function is positive in the first quadrant, thus sin 15° value = (√6 - √2)/4 or 0.2588190. . . Since the sine function is a periodic function, we can represent sin 15° as, sin 15 degrees = sin (15° + n × 360°), n ∈ Z. ⇒ sin 15° = sin 375 ..., Roman Numerals Radical to Exponent Exponent to Radical To Fraction To Decimal To Mixed Number To Improper Fraction Radians to Degrees Degrees to Radians Hexadecimal Scientific Notation Distance Weight Time Volume. Topic. Pre Algebra; Algebra; Pre Calculus; ... \tan^2(x)-\sin^2(x)=\tan^2(x)\sin^2(x) prove\:\cot(2x)=\frac{1 …, As you know, radians are written as a fraction with a π, such as 2π/3, 5π/4, or 3π/2. ... 45°=45pi/180 radians is the stretch of the circle at 45° and sin(45°)=sqr(2)/2 the y-value (or opposite side of triangle) at 45°. ... We're asked to convert 150 degrees and negative 45 degrees to radians., Calculate cos(150) cos is found using Adjacent/Hypotenuse. Determine quadrant: Since 90 150 180 degrees it is located in Quadrant II. sin is positive. Determine angle type: 150 > 90°, so it is obtuse. cos(150) = -√ 3 /2. Excel or Google Sheets formula: Excel or Google Sheets formula:=COS(RADIANS(150)) Special Angle Values, Trigonometry. Find the Exact Value sin (105) sin(105) sin ( 105) Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. sin(75) sin ( 75) Split 75 75 into two angles where the values of the six trigonometric functions are known. sin(30+45) sin ( 30 + 45)