integral from 0 to 2 of (1+9x^4)^1/2 dx(adsbygoogle = window.adsbygoogle || []).push({});

I was thinking that I could use a trig substitution to solve for it so it would be:

[2]\int[/0] [9(1/9 +x^4)]^1/2

so [2]\int[/0]3[(1/9+x^4)]^1/2

my problem is that I can understand that my a would b 1/3, and that it should be atantheta, but what I can't seem to get is that it is an X^4. I understand that it is (x^2)^2, but again, how do I do it because I only know how to deal with it when it is x^2. If anyone has any suggestions how to deal with this problem, that would be great.

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# Homework Help: Integration problem

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