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Communist
Jun 2, 2011, 03:58 AM
Hey, I need to find the limit of this:

\lim_{x\to1}(\frac{x-1}{x^2-x-2})^2

By substituting 1 in place of x, I get:

\frac{0}{4}=0

But I suspect that's incorrect, how do I go about solving an equation like this?

galactus
Jun 2, 2011, 04:02 AM
You are correct. It is indeed 0.

It is not an indeterminate form. It is also continuous.

Thus, you can do that.