Question

Value of sin5X / sinx in terms of cos x

Answer 1

Answer:

To express cosθ ⁡ in terms of sinθ ⁡ , we must use the trigonometric identity sin2θ+cos2θ=1 ⁡ θ + cos 2 ⁡ . Thus, in terms of sinθ ⁡ , cosθ=±√1−sin2θ ⁡ θ = ± 1 − sin 2 ⁡ .

Step-by-step explanation:

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Answer 2

Answer:

The formula cos 2A = cos2 A − sin

Step-by-step explanation:

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