# Question #b3951

##### 3 Answers

#### Explanation:

After using tabular integration,

=

=

=

#### Explanation:

.

Since it is a product of two functions we use integration by parts:

We use integration by parts again for the remaining integral

Now, we can evaluate this from

See explanation.

#### Explanation:

We will solve this using integration by parts, which is essentially an inversion of the product rule.

It appears that we will have to perform this operation two times.

For our first operation:

Then...

One more iteration must be performed, upon the second part of this. Now we have:

Giving us:

Returning back to our initial integration by parts...