Question

2. cos 0°

a) sin 1° b)
c) sin 90° d) tan 90°
B)cos 1°

Answer 1

sin 90

Explanation:

cos (0)

Using the unit circle, we know that cos 0=1

sin 1 and cos 1 are not equal to 1

sin 90 =1

tan 90 = sin 90/ cos 90 = 1/0 =undefined