Use the given information to find the exact function value. Simplify your answer as much as possible. cot0 = cos 0 <0 Part 1 of 3 (a) sin 20 =||| %3D Part 2 of 3 (b) cos 20 = %3D Part 3 of 3

Q: Express the following functions in cosine form: (a) 4 sin(@t - 30°) (c) -10 sin(@t + 20°) (b) -2 sin…

A:

Q: cos 2.

A: Using the trigonometric formula,  cos2θ=2cos2θ-1⇒cos2θ+1=2cos2θ⇒cos2θ+12=cos2θ⇒cos2θ=cos2θ+12 Taking…

Q: Find x if cos 53°= sin x. %3D (1) 90° (2) 127° (3) 53° (4) 370

A: To find x, if cos53°=sin x

Q: Use a sketch to find the exact value of the expression sin (cos-1√2/ 2)

A: sincos-122

Q: -11m. ii. cos-1(cos()) CO 6.

A: Given problem:- cos-1(cos(11π6))=?