Trigonometryhard · Past Paper
Evaluate: tan 1° tan 2° tan 3° ... tan 89°.
A0
B1
Cundefined
D1/2
✓ Correct Answer: B — 1
Complementary pairs tan 1 * tan 89 = tan 1 * cot 1 = 1. Middle term tan 45 = 1.
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