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Hi guys, I'm sharing some information on the topic of limits by approximation or evaluation of a rational function in pre-calculus topics. This video will be very useful for your math subject. I try to resolve all your doubts in the video, but if you have any questions, feel free to comment without going into detail. Also at the end of the video I teach how to solve the limit of the function with the algebraic method using factorization, a topic that will be very useful later on in these topics. Greetings and good luck!