Railways PYQCBT 1 2016

RRB NTPC · Question 93

Evaluate: (sinθ/cosθ) × (cotθ/cosecθ)

  1. cosθ
  2. sinθ
  3. tanθ
  4. secθ
Show answer & explanation

Answer: (B) sinθ

Explanation

cotθ / cosecθ = (cosθ/sinθ) × sinθ = cosθ. So the expression = tanθ × cosθ = sinθ.