Mathematics · Trigonometry
The expression [(1 + sec θ cosec θ)2 (sec θ - tan θ)2 (1 + sin θ)] / [(sin θ + sec θ)2 + (cos θ + cosec θ)2], where 0° < θ < 90°, is equal to:
- 1cos θ
- 21 - sin θ✓
- 31 - cos θ
- 4sin θ
Correct answer
1 - sin θ
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