This is not really a homework or anything, just found myself hitting a wall when doodling around.(adsbygoogle = window.adsbygoogle || []).push({});

If I have an integral like

##\int_{-1}^{0} x(x^2-1) dx##

and I introduce a new variable:

##u = x^2##

How do I calculate the limits of the new integral? In this case the upper limit is obviously 0, but what about the lower limit?

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# Change of variables in an integral

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