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SSC CHSL 2025 PYQ — Question 73

SSC CHSL - 26 Nov 2025 - Shift 3 • Quantitative Aptitude • Q73

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Simplify the expression: 1−cos⁡2xsin⁡x.\text{Simplify the expression: } \frac{1-\cos^2 x}{\sin x}.

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Correct answer: A

Explanation

given :

(1 − cos²x) / sin x

According to the formula:

sin²x + cos²x = 1

1 − cos²x = sin²x

(1 − cos²x) / sin x

= sin²x / sin x

= sin x