Solve the following equations for A, if : sin 3 A = √3/2

sin 3 A = ⇒ sin 3A = sin 60° So, 3A = 60° ⇒ A = ⇒ A = 20° Hence, A = 20°.

Mathematics

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sin 3 A = $\dfrac{\sqrt3}{2}$

⇒ sin 3A = sin 60°

So, 3A = 60°

⇒ A = $\dfrac{60°}{3}$

⇒ A = 20°

Hence, A = 20°.

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