# How do you evaluate arcsin(1/2)?

Jun 9, 2015

Find arcsin (1/2)

#### Explanation:

sin x = 1/2 -> find x?

Trig table gives ->$\sin x = \frac{1}{2} \to x = \frac{\pi}{6}$ or 30 deg

Trig unit circle gives another arc x that has the same sin value (1/2):

x = (180 - 30) = 150 deg

Answer within interval (0, 360): 30 deg and 150 deg