Mathematics · Trigonometry
The expression cos(θ)sec(θ) - 1 + cos(θ)sec(θ) + 1 is equal to:
- 12sec2(θ)
- 22cot2(θ)✓
- 32cos2(θ)
- 42sin2(θ)
Correct answer
2cot2(θ)
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