# Find the limit as x approaches 3 from the right #ln(x^2-9)#?

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I keep on getting oo, however the answer is -oo. Isnt #(x^2-9)# going to give a postive

I keep on getting oo, however the answer is -oo. Isnt

Please see below.

A little more to think about

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The limit as x approaches 3 from the right of ln(x^2-9) is ln(0).

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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