The integrals in Exercise are in no particular order. Evaluate each integral using any algebraic method or trigonometric identity you think is appropriate, and then use a substitution to reduce it to a standard form.

Step 1 of 3</p>

Here, we have to integrate .…(1)

Step 2 of 3</p>

Let us substitute

Therefore, (1) becomes .

Substituting back , we get