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Find the least positive angle satisfying 4 sin x cos x = 1.
Aπ/6
Bπ/12
Cπ/3
Dπ/4
Answer & Solution
Correct answer: B. π/12
Since 2 sin x cos x = sin 2x, the equation becomes sin 2x = 1/2, so 2x = π/6 and x = π/12.
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