what is this integral Watch
also, I need proof of e^lnx=lnx
if e^lnx=a, then lna=lnx, so not a=lnx
Let y= e^ (lnx)
Taking the natural logarithm on both sides gives
ln y= ln [ e^ (lnx) ] = (ln x) * lne =ln x since lne=1
As such, since ln y=lnx, then y=x= e^ (lnx) (shown)
Hope this helps. Peace.