Integrate ln(cube root (2+y^3)) dydx

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Homework Statement



integrate ln(cube root (2+y^3)) dydx with limits
of y =sqrt (x) to 1
of x from 1 to 0


Homework Equations



integral of ln x= x ln x.

This ends up being very convoluted, haven't even begun to insert limits






The Attempt at a Solution

 
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So this is
\int_{x= 1}^0\int_{y= \sqrt{x}}^1 ln(\sqrt[3]{2+ y^3})dydx= -\int_{x= 1}^0\int_{y= \sqrt{x}}^1 ln(\sqrt[3]{2+ y^3})dydx

If you change the order of integration, that becomes
-\int_{y= 0}^1\int_{x= 0}^{y^2} ln(\sqrt[3]{2+ y^3})dxdy

Integrate with respect to x first and you should see a simple substitution.

(Writing ln(\sqrt[3]{2+ y^3})= (1/3)ln(2+ y^3) will also simplify.)
 
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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