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Railways PYQCBT 1 2016

RRB NTPC · Question 90

If sinθ = 15/17, then cot θ = ? A. 8/17 B. 15/8 C. 8/15 D. 17/8

  1. C

  2. B

  3. D

  4. A

Show answer & explanation

Answer: (A) C

Explanation

sin θ = 15/17, so cos θ = √(1 − 225/289) = 8/17. Then cot θ = cos θ / sin θ = 8/15.