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Verify the identity:cos (2A)/1 + sin (2A) = cot A -1/cot A+1 Verify the identity: cos(2A) 1 + sin(2A) cot A cot A + I

Verify the identity:cos (2A)/1 + sin (2A) = cot A -1/cot A+1

Verify the identity: cos(2A) 1 + sin(2A) cot A cot A + I

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