a.Without using the calculator, explain your steps in finding cot (−5r/6) b. Prove that (√(cosec?−1)/(cosec?+1))=(cot ? sin ?)/(1+sin ?) c. Solve 3 cos 2? + cos ? = 2 for 0 < ? < 360°.

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: Simplify (1 – sin² 0)(1+ tan² 0) b.tan e а.1 c.-csce d.-1

A: The answer is found in step-2

Q: 2. Find all solutions to both trigonometric equations in the interval xE[0, 27] . Express the…

A: Given

Q: b. What is the range of y = sin-12x? %3D

A:

Q: Prove (cos A)* - (sin A)¹ = cos 2A

A:

Q: Solve (sin23x)dy= dx cot3x + C 3 cot3x O b. y= 3 sec3x O C. y = O d. y = sec3x + C 3

A:

Q: V2. Equivalent of sin45 ° + cos60 ° is which one?

A:

Q: Simplify: a. cos (2 cos-1 b. sin (cos-15

A: Given: a.  cos2 cos-125 b.  sincos-125