Question

In exercises 3-6, write the expression in terms of sine or cosine

Sin 22°

Cos 56°

Cos 15°

Sin 37°

Answer 1

sin 22 = 0.3746
cos 56=0.5592
cos 15= 0.9659
sin 37=0.6018
just punch it in you calculator (ex. sin(22) and it should be in degree mode if you're using graphing calculator)