NCERT Class 12-Mathematics: Exemplar Chapter –7 Integrals Part 4

Doorsteptutor material for IEO Class-7 is prepared by world's top subject experts: fully solved questions with step-by-step explanation- practice your way to success.

Question 13:

Find

Answer:

Question 14:

Find

Answer:

We have

Put

Therefore,

Long Answer (L.A.)

Question 14:

Evaluate

Answer:

Let . Then

So

Comparing coefficients, we get

So

Therefore,

Question 16:

Answer:

Now

Put Therefore

Again,

Thus

Question 17:

Show that

Answer:

Thus, we get

Hence,