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Question

Prove the following trigonometric identities.

tan3 θ1+tan2 θ+cot3 θ1+cot2 θ=sec θ cosec θ-2 sin θ cos θ

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Solution

In the given question, we need to prove

Using the property and, we get

Taking the reciprocal of the denominator, we get

Further, using the identity, we get

Hence proved.


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