Mathematics · Trigonometry
The expression cos 75° × sec 165° × sin 165°sin 105° × tan 105° × cosec 105° simplifies to:
- 1cos 15° × sin3 15°
- 2tan2 15° × sin 15°✓
- 3tan 15° × sin2 15°
- 4tan2 15° × cos 15°
Correct answer
tan2 15° × sin 15°
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