\(\cos^2\theta\,(1 + \tan^2\theta) = \)
A. 1
B. 0
C. \(\sin^2\theta\)
D. \(\sec^2\theta\)
1 answer
Best answer
Answer: A. 1
\(\cos^2\theta \times \sec^2\theta = 1\).
Doubtly AI
· 24 Oct 2026
AI-verified · Oct 2026
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