Trigonometryhard · Past Paper
Simplify: √((1 - cos θ) / (1 + cos θ))
Acosec θ - cot θ
Bcosec θ + cot θ
Csec θ - tan θ
Dsec θ + tan θ
✓ Correct Answer: A — cosec θ - cot θ
Rationalizing the denominator gives (1-cos θ)/sin θ = 1/sin - cos/sin = cosec θ - cot θ.
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