CSC(4x) - cot(4x) CSC(4x) + cot(4x) =

A. tan(2x)
B. cot(4x)
C. tan^2(2x)
D. tan^2 (4x)

Which of the following represents the range of the graph of f(x) below

|z| > (1/2) {-1/2, 1/2} {z|(-1/2) < z < (1/2)} {z|z < (-1/2) ∪ z > (1/2)}

Aregular octagon rotates 360 degrees about its center. how many times does the image of the octagon coincide with the preimage during the rotation?