Question

Triple Angle Formullas n theur derivations​

Answer 1

From these formulas, we also have the following identities for sin ⁡ 3 ( θ ) \sin^3(\theta) sin3(θ) and cos ⁡ 3 ( θ ) \cos^3 (\theta) cos3(θ) in terms of lower powers: sin ⁡ 3 ( θ ) = 3 sin ⁡ ( θ ) − sin ⁡ ( 3 θ ) 4 , cos ⁡ 3 ( θ ) = cos ⁡ ( 3 θ ) + 3 cos ⁡ ( θ ) 4 .

Answer 2

Answer:

Step-by-step explanation:

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