Weknow that cos t is the x -coordinate of the corresponding point on the unit circle and sin t is the y -coordinate of the corresponding point on the unit circle. So: x = cos t = 1 2 y = sin t = √3 2. Try It 2.2.1. A certain angle t corresponds to a point on the unit circle at ( − √2 2, √2 2) as shown in Figure 2.2.5. Its basically a picture of certain common values for sine and cosine for angles such as π 6 or 2π 3. sqrt3/2 There are 2 ways, that don't need calculator a. Trig table of special arc --> cos (pi/6) = sqrt3/2 b. Use triangle trigonometry Consider a right triangle ABH that is half of an equilateral triangle ABC Angle A = pi/6 = 30^@, Angle B sincos. Natural Language. Math Input. Extended Keyboard. Examples. Wolfram|Alpha brings expert-level knowledge and capabilities to the broadest possible range of people—spanning all professions and education levels. Clickhere👆to get an answer to your question ️ Integrate : intsin (x - alpha)/sin (x + alpha)dx. Solve Study Textbooks Guides. Join / Login. Question . If ∫ cos x − cos α sin 2 α − sin Calculus Simplify 2sin (x)cos (x) 2sin(x)cos (x) 2 sin ( x) cos ( x) Apply the sine double - angle identity. sin(2x) sin ( 2 x) Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor. Arcsineis an inverse of the sine function. In other words, it helps to find the angle of a triangle that has a known value of sine: arcsin(x) = y iff x = sin(y) As sine's codomain for real numbers is [−1, 1] , we can only calculate arcsine for numbers in that interval. This means that the domain of arcsin (for real results) is -1 ≤ x ≤ 1 DyL5.

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