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

(vi)

Prove the following identities:

(vi)

cosec⁡θ+2cosec⁡2θsec⁡θ=cot⁡θ2\dfrac{\operatorname{cosec}\theta + 2\operatorname{cosec} 2\theta}{\sec\theta} = \cot\dfrac{\theta}{2}

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