Trigonometry - Proving and Simplifying Trigonometric Identities

Trigonometry - Proving and Simplifying Trigonometric Identities

Prove the identity \((\cot x - 1)^2 + (\cot x + 1)^2 = 2 \operatorname{cosec}^2 x\).

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Answer:\((\cot x-1)^2+(\cot x+1)^2=2\operatorname{cosec}^2x\), wherever the expressions are defined.

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