Attachment 25352

when I multiply by I get a denominator of zero. Does that mean I should divide thru by x to get

That does not seem right either.

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- October 22nd 2012, 06:27 PMkingsolomonsgravefor this limit problem do I multiply by the conjugate?
Attachment 25352

when I multiply by I get a denominator of zero. Does that mean I should divide thru by x to get

That does not seem right either. - October 22nd 2012, 06:49 PMrichard1234Re: for this limit problem do I multiply by the conjugate?

However x is negative, so , and .

The original expression should approach -1. - October 22nd 2012, 08:34 PMProve ItRe: for this limit problem do I multiply by the conjugate?