Question

Can anyone please help me solve it
11,12 (1)(2)(3),13 this is all​

Answer 1

answer of 11

Explanation:

given A=30°

R.H.S=2sinA cosA

=2 * sin30° * cos30°

`2 * (1)/(2) * ( √(3) )/(2)`

`= ( √(3) )/(2)`

=sin60°

sin 2*30°

=sin2A

L.H.S=R.H.S