Integration problem

Question

Solve step by step using the solution given below as a guide. Note: The solution below may contain mistakes but the final answer is correct.

Comments

Perhaps this formula might have been used instead of the one above:

 

---

Yes, you can use either of the formulas.

Answer 1

The Function is

Re write the function as follows

This is in the form of

Then

       (since )

Therefore,

Comments

Please explain how you went from the first step to the second.

---

This is how we get step 2 from step 1.