Acc to trignometric identities sin 3A can be written as cos ( 90°- 3A) . Now lhs and rhs both are in the form of cos so we can solve the equation by putting of the equations equal

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❤ ?§✝️⛎Đý ®️@Ňķëŕ ?❤ 5 years, 8 months ago

How?

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Shreyash Saraswat 5 years, 8 months ago

Answer is 29°

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