Rationalizing the radical to evaluate the limit

The video tutorial covers the evaluation of limits using direct substitution and addresses issues when encountering radicals. It explains the process of rationalizing radicals by multiplying with conjugates, a technique practiced in previous classes. The tutorial also delves into the difference of two squares, highlighting how middle terms cancel out when multiplying binomials with their conjugates. The session concludes with simplifying expressions and evaluating limits, emphasizing that rationalization of the denominator is not required in AP exams.

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