If \(\sin\theta = \frac{3}{5}\) and \(\theta\) is acute, then \(\cos\theta = \)

A. \(\frac{3}{4}\)

B. \(\frac{4}{5}\)

C. \(\frac{5}{4}\)

D. \(\frac{2}{5}\)

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

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Best answer

Answer: B. \(\frac{4}{5}\)

\(\cos\theta = \sqrt{1 - \frac{9}{25}} = \sqrt{\frac{16}{25}} = \frac{4}{5}\).

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

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