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SSC CHSL 2025 PYQ — Question 74

SSC CHSL - 27 Nov 2025 - Shift 1 • Quantitative Aptitude • Q74

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If sin(x) = 3/5, find cos(x).

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Correct answer: A

Explanation

Given:

sin(x) = 3/5

By the formula:

sin²x + cos²x = 1

(3/5)² + cos²x = 1

9/25 + cos²x = 1

cos²x = 1 − 9/25

cos²x = 16/25

cosx = 4/5