Thread: derivative of cot x
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Old November 7th, 2009, 03:31 PM
saweetness saweetness is offline
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ok so that would be equal

cos^2x - sin^2x / sin^2x

now do i use the proof identities? like

cos^2x - sin^2x = 2cos^2x - 1
and then
sin^2x = 1 - cos^2x
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