Trigonometrymedium · Past Paper
What is 2 sin 15° cos 15°?
Asin 30°
Bcos 30°
C1/2
DBoth a and c
✓ Correct Answer: D — Both a and c
Using sin 2θ = 2 sin θ cos θ, 2 sin 15 cos 15 = sin 30 = 1/2.
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✓ Correct Answer: D — Both a and c
Using sin 2θ = 2 sin θ cos θ, 2 sin 15 cos 15 = sin 30 = 1/2.
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