Question

triple angle formulae​

Answer 1

Answer:

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Triple-angle Identities. sin ⁡ 3 θ = 3 sin ⁡ θ − 4 sin ⁡ 3 θ \sin 3 \theta = 3 \sin \theta - 4 \sin ^3 \theta sin3θ=3sinθ−4sin3θ cos ⁡ 3 θ = 4 cos ⁡ 3 θ − 3 cos ⁡ θ \cos 3\theta = 4 \cos ^ 3 \theta - 3 \cos \theta cos3θ=4cos3θ−3cosθ

Answer 2

Step-by-step explanation:

side x 3. ..........

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