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anonymous
 5 years ago
Can someone help me in u substitution i forgot how to do that.
anonymous
 5 years ago
Can someone help me in u substitution i forgot how to do that.

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0If the substitution \[u=\sqrt{x1}\] is made, the integral \[\int\limits_{2}^{5} \sqrt{x1}\div x dx=\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so du= \[1\div(2(\sqrt{x1})\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok i've got that so far

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0i need to find x too right?

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0no because u is equal to that part of the denominator

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so you have, 2\[2\int\limits_{}^{}u^2/(u^2+1)\]

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ok i don't get how you got that.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0http://www.wolframalpha.com/input/?i=integrat%3A+%28%28x1%29^%281%2F2%29%29%2Fx

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0go there but don't forget the domain of integration
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