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Railways PYQCBT 1 2016

RRB NTPC · Question 38

If 12tan A = 5, cosec A =? A. 13/5 B. 12/13 C. 5/13 D. 12/5

  1. B

  2. C

  3. A

  4. D

Show answer & explanation

Answer: (C) A

Explanation

tan A = 5/12, so opposite = 5, adjacent = 12 and hypotenuse = 13. sin A = 5/13, so cosec A = 13/5.