Find (1/sinθ) – sinθ.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. cosθ cotθ.
Given, (1/sinθ) – sinθ
⇒ (1 - sin2θ)/sinθ
⇒ cos2θ/sinθ
⇒ cosθ. cosθ/sinθ = cosθcotθ
SSC CGL - 25 July 2023 - Shift 4 • Quantitative Aptitude • Q65
Find (1/sinθ) – sinθ.
Correct answer: A
Explanation
The correct answer is option 1 i.e. cosθ cotθ.
Given, (1/sinθ) – sinθ
⇒ (1 - sin2θ)/sinθ
⇒ cos2θ/sinθ
⇒ cosθ. cosθ/sinθ = cosθcotθ