Question: Show sin 3A = 3 sin A cos A- sin A. Show cos 3A = 4 cos A 3 cos A. Show sin 4A

Show sin 3A = 3 sin A cos A- sin A. Show

Show sin 3A = 3 sin A cos A- sin A. Show cos 3A = 4 cos A 3 cos A. Show sin 4A = 4 sin A cos A(cos A- sinA). Show cos 4A = 8 cos A - 8 cos A + 1. Simplify sin A cos A tanA + Simplify Show sin 3A sin 24 2 sin A cos A sin 24 tan A + tan A = 2 cosA 1 2cos A

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