Help me solve the trigonometric proof above
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Step-by-step explanation:
1-2cosecAcotA+2cot²A
=cosec²A-cot²A-2cosecA+2cot²A
=(cosecA-cotA)²
=(1/sinA-cosA/sinA)²
=(1-cosA/sinA)²
=(1-cosA)²/sin²A
=(1-cosA)²/1-cos²A
=1-cosA/1+cosA
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