Mathematics · Trigonometry
If cot(A) + cos(A) = p and cot(A) - cos(A) = q, then which of the following relations is correct?
- 1√(1/16pq) = p2 + q2
- 21/(4pq) = p2 + q2
- 3p2 - q2 = √(16pq)✓
- 4p2 - q2 = 16pq
Correct answer
p2 - q2 = √(16pq)
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