Question

Answer immediately please
(iii) sin 2A = 2 sin A is true when A=
(A) 0°
(B) 30°
(C) 45°
(D) 60°​

Answer 1

A) 0 degree is the right answer

Reason:
LHS
Sin0 degree = 0

RHS
2* sin0 degree = 2*0 = 0

Therefore
LHS = RHS

Answer 2

Sin2A = 2sinA is true when A = 0

Because, sin2A = sin2×0 = sin0 = 0

2sinA = 2sin0 = 2×0 =0