Trigonometrymedium · Past Paper
What is the value of sin 60 * cos 30 + cos 60 * sin 30?
A0
B1/2
C1
Dsqrt(3)/2
✓ Correct Answer: C — 1
This follows the identity sin(A+B) = sinA cosB + cosA sinB. sin(60+30) = sin 90 = 1.
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