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