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  9. Q219

RRB Group D (Level-1 posts) 2022 · Question 219 of 598

If θ is an acute angle, find the denominator A, when (cosec θ - cot θ)2 = 1−Cosθ A ​

  1. Acosec θ - 1
  2. B1 + sin θ
  3. Ccot θ
  4. D1 + cos θCorrect

Answer: D. 1 + cos θ

Explanation

Using trigonometric identities, we find that (cosec θ - cot θ)2 simplifies to A = 1 + cos θ.

Source: RRB Group D 2022 Prev. Yr. Paper (17 Aug 2022) (Shift 3) - Prepp · reliable-secondary

← Q218View full paper (598 questions)Q220 →

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