Question

HELP! I've tried doing it, but every time I don't get any of the options.
What is the simplified form of the expression $cos^{3}x + \frac{cosx}{csc^{2}x}$
a.) sec x
b.) cos x + sin x
c.) cos x
d.) 2cos^3x

Answer 1

The final answer is choice C) cos(x)

Have a look at the attached image to see my work on how I got that answer.