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Sticky Note
The value of (1 - cos² x) × (1 + cot² x) = _____?
  1. 1
  2. 2
  3. 3
  4. None of these
Explanation
(1 - cos²x)(1 + cot²x)
= sin²x × cosec²x
= sin²x × 1/sin²x
= 1

Last verified on 08-03-2026

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