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SSC CHSL 2025 PYQ — Question 74

SSC CHSL - 22 Nov 2025 - Shift 1 • Quantitative Aptitude • Q74

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If tan θ = 1, find cos²θ.

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Correct answer: A

Explanation

Given:

tanθ = 1

By the formula:

1 + tan²θ = sec²θ

cos²θ = 1 / sec²θ

tan²θ = 1² = 1

sec²θ = 1 + 1 = 2

cos²θ = 1 / 2