How to Rationalize a Denominator

Curated and Reviewed by Lesson Planet

"Sal, why do we care? Why must we rationalize denominators?" Acknowledging these (possibly pleading) concerns, Sal explains the reasons behind rationalizing a denominator before demonstrating how to do it several times. Though he admits that one reason could be for "aesthetics," Sal contends that the process is important to learn and understand.

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