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Integration by PartsLet’s start off with this section with a couple of integrals that we should already be able to do toget us started. First let’s take a look at the following.So, that was simple enough. Now, let’s take a look at,To do this integral we’ll use the following substitution.Again, simple enough to do provided you remember how to do substitutions. By the way makesure that you can do these kinds of substitutions quickly and easily. From this point on we aregoing to be doing these kinds of substitutions in our head. If you have to stop and write these outwith every problem you will find that it will take you significantly longer to do these problems.Now, let’s look at the integral that we really want to do.