Trigonometryeasy · Past Paper
Identify the incorrect identity:
Asin² θ + cos² θ = 1
Bsec² θ - tan² θ = 1
Ccosec² θ + cot² θ = 1
Dcosec² θ - cot² θ = 1
✓ Correct Answer: C — cosec² θ + cot² θ = 1
The correct identity is cosec² θ - cot² θ = 1, not addition.
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