Trigonometryhard · Past Paper
The value of cos 1 cos 2 cos 3 ... cos 179 is:
A1
B0
C-1
D1/2^179
✓ Correct Answer: B — 0
The series includes cos 90, which is 0, making the entire product 0.
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✓ Correct Answer: B — 0
The series includes cos 90, which is 0, making the entire product 0.
Share this question