Using the formula, `sinA=sqrt((1-cos2A)/(2))`, find the value of `sin30^(@)`, it being given that
Channel: Doubtnut
Date: 03/01/2020

Using the formula, `sinA=sqrt((1-cos2A)/(2))`, find the value of `sin30^(@)`, it being given that `cos60^(@)=(1)/(2)`.