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