Question

derivative of square root of (lnx)

Answer 1

so, 1/2x?

Answer 2

forget my above post...it's confusing. so,\[\frac{d}{dx}(\sqrt{\ln x})=\frac{d}{du}\sqrt{u}*\frac{du}{dx}\ln x\]

Answer 3

Here I let u=lnx

Answer 4

we get:\[\frac{1}{2\sqrt{u}}*\frac{1}{x}\]now just put u=lnx back in to express everything in terms of x:\[=\frac{1}{2x \sqrt{\ln x}}\]

Answer 5

make sense?

Answer 6

Cool thanks, hey, can I ask you another question too?
http://openstudy.com/study#/updates/506e28d4e4b088f3c14db4c7