You need to use integration by parts. General rule is to put u equal to the bit
of the integrand that you can differentiate most easily (of the part that you can't integrate).
So in the first you can differentiate easily and integrate easily, so you would use
You need to use integration by parts. General rule is to put u equal to the bit
of the integrand that you can differentiate most easily (of the part that you can't integrate).
So in the first you can differentiate easily and integrate easily, so you would use
RonL
For the 2nd question i yet u = x and dv = 1/x and when i integrate i end up with:
= xlnx - \int ln x dx
= x lnx - (xlnx -x)
= x
but thats not the right answer. any recommendation?