Trigonometrymedium · Past Paper
Value of sin(75) is:
A(sqrt(3)+1)/2
B(sqrt(3)-1)/(2*sqrt(2))
C(sqrt(3)+1)/(2*sqrt(2))
D1/2
✓ Correct Answer: C — (sqrt(3)+1)/(2*sqrt(2))
sin(45+30) = sin45cos30 + cos45sin30 = (1/sqrt2)(sqrt3/2) + (1/sqrt2)(1/2) = (sqrt3+1)/(2sqrt2).
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