verify the following identies

sin^2x(1+cot^2x)-1=0 | Wyzant Ask An Expert

Robert J. answered • 03/14/13

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sin^2x(1+cot^2x)-1

= sin^2 x + sin^2 x cot^2 x - 1

= sin^2 x + cos^2 x - 1

= 1 - 1

= 0

QED

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