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SSC CHSL 2020 · PYQ · Trigonometry · medium

If cot θ = 80/39, find the value of cosec θ.

  1. A.89/80
  2. B.39/89
  3. C.89/39✓ Correct
  4. D.39/80

Explanation

Using cosec²θ = 1 + cot²θ = 1 + (80/39)² = 1 + 6400/1521 = 7921/1521, so cosec θ = 89/39.
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