Question involving the Divergence Theorem and Surface Integrals

lys04
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Homework Statement
Divergence theorem problem
Relevant Equations
Divergence theorem, surface integrals
Is this correct? Ignore my bad drawings
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It looks fine, but in the future please do not simply post images. The forum has a perfectly functioning LaTeX implementation, use it! If you just post a screenshot of your compiled math there is no possibility for us to quote particular sections of your post and it is less readable.
 
Will do! Thanks
 

Thread 'Finding the nth roots of a complex number'

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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