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Thu 25 Aug, 2005 02:55 pm
Use continuity to evaluate the limit.
lim 5 + sqrt{x}/sqrt{5} + x as x--->4
What are the steps?
Do I plug 4 for x and simplify?
Do I need to use the conjugate or do I rationalize the denominator?
you can just plug in four to get the answer. The only number that you need to simplify the fraction before simplifying is when x=-sqrt{5} because it would initially make a denominator of zero.
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