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Lial's Precalc and graphing calc question

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How important is it to use the graphing calculator for Lial's precalculus? My dd was accepted to nursing school and she won't need any higher level math. We are on Section 2.2 of the text and there is a set of problems that ask you to use it. I was hoping to avoid having to figure the thing out and just do the problems in the text that don't require it. Is that ok?



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