यदि sin 2A = 2 sin A है, तब A का मान है -
(A) 30º (B) 0º (C) 60º (D) 90º
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Answer:
(B) 0°
Step-by-step explanation:
Sin2A = 2SinA
= Sin2×0° = 2Sin0°
= Sin0° = 2Sin0°
= 0 = 2 × 0
= 0 = 0
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