Absolute Value in a double integral

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[SOLVED] Absolute Value in a double integral

Homework Statement



If \Omega = [-1,1] x [0,2], evaluate the double integral \int\int_{\Omega} \sqrt{|y-x^{2}|} dA given that it exists.

Homework Equations



None

The Attempt at a Solution



I know that in order to integrate with the absolute value I have to split the integral into two parts: When x^{2} > y ---> \sqrt{x^{2}-y} and y > x^{2} ---> \sqrt{y-x^{2}}

I just can't get of the limits of the integral. Anyone have any advice on where to start or how to look at it to discover the limits? TIA
 
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n/m, found them out.
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...
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