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quick question for inverse (1 Viewer)

mecramarathon

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how do you differentiate cos<SUP>-1 2</SUP>√x i.e. inverse cos of 2 root x

cheers
 

fullonoob

fail engrish? unpossible!
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d/dx arc cos (2rootx)
u = 2rootx
du = dx / rootx

d/dx arc cos (2rootx)
= - 1 / root(1 - 4x) . root x
 

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