Question

12. Find one solution for each equation. Assume all angles are acute angles

a. cos(0 + 4°) = sin(30 +2°)

Answer 1

21 degrees

Explanation:

I'm assuming that the 0 is supposed to be theta, which I'm replacing with x to make it easier for me to type.

Because these angles are acute, we can use the fact that if two angles A and B are complementary, then sinA = cosB.

So we can get that x+4+3x+2=90

4x+6=90

4x=84

x=21