I have no idea

Question

If cos ∅=7/25 and Ø is in quadrant IV find CSC ∅

A. 25/7

B. 24/25

C. 25/24

D. -25/24

E. -24/25

Answer 1

Tessa, cosine is adjacent/hypotenuse and cosecant is hypotenuse/opposite.

 

7² + b² = 25²

49 + b² = 625

b² = 576

b = +24

 

Since we are in quadrant IV, where the opposite is negative, our answer is D.