Question

Which of these pairs are equal?

a. sin 49° and sin 51° eliminate
b. sin 33° and cos 57°
c. cos 28° and sin 72°
d. cos 14° and cos 76°?

Answer 1

The Answer is B

Explanation:

Automatically eliminate A and D. C can't be it because 28 + 72 = 100 and we're trying to make the values equal 90. Therefore, B is the correct answer because 33 + 57= 90