Question

How do you find the integral of `int lnx dx` from 0 to 4?

Answer 1

`8ln2-4`

Explanation:

`int_0^4` `lnxdx`
by applying byparts
`lnx``int_0^4` `dx`-`int_0^4` `1/x``xdx`(apply lmints for lnx also)
=(`ln4*4-ln0*0)`-(`4-0`)
= `8ln2-4`