How Do You Rationalize the Numerator with Square Roots in Limits?

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The discussion focuses on rationalizing the numerator involving square roots in limits, specifically the limit of (9 - t) / (3 - √t) as t approaches 9. One participant seeks clarification on how to rationalize square roots, expressing confusion about the process compared to rationalizing regular expressions. Another participant suggests that rationalizing a surd (irrational number) cannot be done and questions the approach being taken. Ultimately, the original poster resolves their confusion independently. The conversation highlights the challenges of working with limits involving square roots and the importance of understanding rationalization techniques.
afcwestwarrior
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when u use square roots, here's an example
lim 9-t/3-squareroot of t
t approaches 9
all i need is an example on how u rationalize the sqaure root of something, i know how to rationalize regular stuff, but i forgot how to rationalize sqaure roots
 
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no one knows how to do it,
 
I hope I've understood your question: you wish to rationalise a surd (which is irrational)? No it can't be done.

Would you like to rewrite the question in Latex? I'm not quite sure what it is that you're trying to do. Perhaps you are taking the wrong approach?
 
it's ok i figured it out
 

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