SSC CGL 2023 PYQ — Question 54

SSC CGL - 14 July 2023 - Shift 2 • Quantitative Aptitude • Q54

What is the value of sec254° - cot236° + 32\frac{3}{2} sin237° × sec253° + 23\frac{2}{\sqrt{3}}tan60°?

Show answer & explanation

Correct answer: B

Explanation

The correct answer is Option 2 i.e. 92\frac{9}{2}.

Given that

The value of sec254° - cot236° + 32\frac{3}{2} sin237° × sec253° + 23\frac{2}{\sqrt{3}}tan60°

⇒  sec254° - cot236° + 32\frac{3}{2} sin237° × sec253° + 23\frac{2}{\sqrt{3}}tan60°

⇒  sec254° - cot2(90° - 54°) + 32\frac{3}{2} sin237° × sec2(90° - 37°) + 23\frac{2}{\sqrt{3}} × 3\sqrt{3}

⇒  sec254° - tan254° + 32\frac{3}{2} sin237° × cosec237° + 2

⇒ 1 + (3/2) + 2

⇒ (2 + 3 + 4)/2

⇒ 9/2