Question
Choose the correct option and justify your choice:
sin 2A = 2 sin A is true when A =
(A) 0° (B) 30° (C) 45° (D) 60°
Solution
(iii) If A = 0
Then, L.H.S. = sin 2A = sin 2(0)
= sin 0° = 0
R.H.S. = 2 sin A = 2 sin 0°
= 2 x 0 = 0
Ans. (A).
