Question 57 Answer and Explanation _ACT December 2014 Form 72G Math Section

Question 57 Answer and Explanation _ACT December 2014 Form 72G Math Section

ACT Test Explanations Profile Exam History

Logout

57. Given that 2 sin α = 2 and 2 $\cos{(\frac{\pi}{2}-b)}=2$ , which of the following could be a value, in radians, of a +b ?

A. 0

B. $\frac{\pi}{2}$

C. 2

D. π

E. 2π

Answer and Explanation

Your Answer is

Correct Answer is D

Explanation