Q2:
Which one of the following would be equivalent to sin(30)? Why?

A
cos(60); the sine and cosine will be the same because the angles are complementary
B
cos(60); the sine and cosine will be the same because the angles are supplementary
C
sin(60); the sines of the two angles will be the same because the angles are complementary
D
sin(60); the sines of the two angles will be the same because the angles are supplementary