In lecture when we covered $7.1, we did the following example: dt. We ultimately solved this question Vi by integration by parts. However, we started the example by considering what would have happened if we began with u-substitution and letting u=In(t). Carry the u-substitution through until you get an integral that is completely in terms of u. You do not need to fully evaluate it just get it to the point where it's solely in terms of u. Remember to convert your limits of integration to u-values. Is this integral easier or harder than the one we ended up with when doing integration by parts in lecture?