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Railways PYQCBT 1 2016

RRB NTPC · Question 60

If cos θ + sin θ = m, sec θ + cosec θ = n, what is m/n? A. 1 B. sin θ cos θ C. sec θ cosec θ D. cot θ tan θ

  1. B

  2. A

  3. C

  4. D

Show answer & explanation

Answer: (A) B

Explanation

n = secθ + cosecθ = 1/cosθ + 1/sinθ = (sinθ + cosθ)/(sinθ cosθ) = m/(sinθ cosθ). So m/n = sinθ cosθ.