Mathematics · Trigonometry
If cos θ = (P2 - 1) / (P2 + 1) where 0° < θ < 90°, then cosec θ is equal to:
- 12P / (1 - P2)
- 2(1 + P2) / 2P✓
- 32P / (1 + P2)
- 4(1 - P2) / 2P
Correct answer
(1 + P2) / 2P
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