Hello.

This isn't in my curriculum so I've never seen it done before. When my book meets an integral like this in the various examples it refers to the calculator.

I'd like to see how it is done, so please solve it step by step if you want to. :]

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- Aug 22nd 2008, 09:41 PMMatteNoobSqare root integral
Hello.

This isn't in my curriculum so I've never seen it done before. When my book meets an integral like this in the various examples it refers to the calculator.

I'd like to see how it is done, so please solve it step by step if you want to. :]

- Aug 22nd 2008, 10:19 PMkalagota
you can do the general substitution rule..

let

so,

if you set

the integral on the right side changes to

...

**************************************************

(another solution)

or you can substitute from the start.. so,

and you use

noting that - Aug 22nd 2008, 10:26 PMMatteNoob
Cool!

I see you use trigonometric substitution in both solutions. I will try to find some resources on that topic.

Thanks a million for the solution (and your time), this seems to be a powerful way to solve many different integrals :) - Aug 22nd 2008, 11:06 PMMarine
Hi there!

I will suggest another solution:

let

resubstitution: , and

or:

So, hyp substitutions are also helpful, to me even easier to use :) - Aug 23rd 2008, 12:36 AMflyingsquirrel