\(1 + \tan^2\theta = \)

A. \(\csc^2\theta\)

B. \(\cot^2\theta\)

C. \(\sec^2\theta\)

D. \(\cos^2\theta\)

Doubtly AI Asked 24 Oct 2026 AI-verified · Oct 2026 ssc 10th Save WhatsApp Report

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Best answer

Answer: C. \(\sec^2\theta\)

Dividing \(\sin^2\theta + \cos^2\theta = 1\) by \(\cos^2\theta\) gives \(\tan^2\theta + 1 = \sec^2\theta\).

Doubtly AI · 24 Oct 2026 AI-verified · Oct 2026 Report

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