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Don't you have any thought on this one?
Integration by parties?
No, u substitution. Let ...
but in denominator is
Just do what I said and you'll see why I did it..
Let ... Now what's du ?
Surely you see it.
If we let , then
See?. The 2du replaces the in your integral.
Then, we get
Originally Posted by Apprentice123 Why? You make the substitution
What kind of integral you used?
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