Trigonometrymedium · Past Paper
If 3 cot A = 4, then sin A is:
A3/4
B4/5
C3/5
D5/3
✓ Correct Answer: C — 3/5
cot A = 4/3 = b/p. So h = sqrt(4^2 + 3^2) = 5. sin A = p/h = 3/5.
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