Mathematics · Trigonometry
Let 0° < θ < 90°. The expression √( sec 2 θ + cosec 2 θ tan 2 θ - sin 2 θ ) × (1 + tan 2 θ) sin 2 θ (cosecθ - cotθ)(1 + cosθ) is equal to:
- 1sec 2 θ
- 2cosec 2 θ sec 2 θ✓
- 3sin 2 θ cos 2 θ
- 4cot 2 θ
Correct answer
cosec 2 θ sec 2 θ
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