Theory of Intelligence
11TH•Mathematics•Trigonometric Identities•Question 2

(xiii)

Prove the following identities:

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(xiii)

3+cos⁡4θ1−cos⁡4θ=12(tan⁡2θ+cot⁡2θ)\dfrac{3 + \cos 4\theta}{1 - \cos 4\theta} = \dfrac{1}{2}(\tan^2\theta + \cot^2\theta)

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