Trigonometryhard · Past Paper
Evaluate: (cos^2 20 + cos^2 70) / (sin^2 59 + sin^2 31)
A0
B1
C2
D-1
✓ Correct Answer: B — 1
cos^2 70 = sin^2 20, so numerator = 1. sin^2 31 = cos^2 59, so denominator = 1. 1/1 = 1.
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