NCERT Class 12-Mathematics: Exemplar Chapter –7 Integrals Part 3
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 8:
Find
Answer:
Dividing numerator and denominator by , we have
Put so that . Then
Question 9:
Evaluate as a limit of sums.
Answer:
Here
Now, we have
Note that
Therefore,
Question 10:
Evaluate
Answer:
We have
Adding (1) and (2), we get
Question 11:
Find
Answer:
We have
Adding (1) and (2), we get
Hence
Question 12:
Find
Answer:
We have