Question

Verify cos60°=1-2sin^2 30°​

Answer 1

Step-by-step explanation:

LHS =

cos 60° = 1/2

RHS =>

1 - 2 sin²30°

=> 1-2{ (1/2)² }

=> 1- 2(1/4)

=> 1- (1/2)

=> 1/2

hence LHS = rhs