How do you integrate #int x cos 3 x dx # using integration by parts?
1 Answer
Step by step working is shown below on how to go about integration by parts.
Explanation:
Integration by parts rule is
First we select
Using a mnemonic ILATE which stands for Inverse, Logarithmic, Algebraic, Trigonometric and Exponential we select
In our problem, we can select
Differentiating with respect to
Once
To find
Using the integration part rule