# How do you use the half-angle identity to find the exact value of sin(pi/6)?

##### 1 Answer

Sep 30, 2015

Find sin (pi/6)

Ans: 1/2

#### Explanation:

Trig Table of special Arcs gives --> sin pi/6 = 1/2.

However if you still want to find it by using trig identities, then this is the popular way.

Apply the trig identity:

Since