Which of the following is a trigonometric identity ?
CBSE Class 10 Maths PYQ · Trigonometry · Find Value using Identities · 1 Mark · March 2025 · Standard
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1921 Mark · March 2025 · Standard
Which of the following is a trigonometric identity ?
- (a)$\sin^2 \theta = 1 + \cos^2 \theta$
- (b)$\csc^2 \theta + \cot^2 \theta = 1$
- (c)$\sec^2 \theta = 1 + \tan^2 \theta$
- (d)$\sin 2\theta = 2 \sin \theta$
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(c) $\sec^2 \theta = 1 + \tan^2 \theta$