More on Product of Sines and Cosines
More on Product of Sines and Cosines
Here we will discuss the following integrals
The case m=n is very easy to handle. Therefore we will consider only the case 
. We will need the following trigonometric identities
Example: Find
Solution. We have the trigonometric identity
Therefore, we get
which yields
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Author: Mohamed Amine Khamsi