Question

please solve this question also???

Answer 1

It's a simple question.

Here's the solution. Hope it helps.

If you don't know what that Identity in the bracket means, use the chain rule instead.

For chain rule,
suppose u = 6t
So, du/dt = 6
So, dt = (du)/6

Replace this in the integral, and put u = 6t.

Then the integral will reduce to:
1/6 (integral) sin u du

Then you can proceed as normal.