i want to prove that this integral along a closed loop:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\oint (1/r^2) dr[/tex]

is equal to zero. but i'm not sure how to prove it. i was wondering if someone can show me a rigid proof for this. I think i'm missing something here because I'm not really that familiar with loop integrals.

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# Homework Help: Integral along a closed loop

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