SSC CHSL 2023 PYQ — Question 56

SSC CHSL - 07 Aug 2023 - Shift 1 • Quantitative Aptitude • Q56

The given expression is equal to :

1−tan2θsec2θ1 - \frac{tan^2θ}{sec^2θ}

Show answer & explanation

Correct answer: B

Explanation

The correct answer is option 2 i.e. sin2θcot2θ.

Given, 1−tan2θsec2θ1 - \frac{tan^2θ}{sec^2θ}

⇒ sec2θ−tan2θsec2θ\frac{sec^2\theta - tan^2\theta}{sec^2\theta} 

⇒ 1/sec2θ = cos2θ

By options,

II. sin2θcot2θ 

⇒ sin2θ × cos2θ/sin2θ = cos2θ

Hence the required answer is sin2θcot2θ .