CalcNotes0101-page3

CalcNotes0101-page3 - (Chapter 1: Review) 1.03 PART C:...

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(Chapter 1: Review) 1.03 PART C: RATIONAL FUNCTIONS A rational expression in x can be expressed in the form: polynomial in x nonzero polynomial in x . Examples : 1 x , 5 x 3 ± 1 x 2 + 7 x ± 2 , x 7 + x which equals x 7 + x 1 ± ² ³ ´ µ Observe in the second example that irrational numbers such as 2 are permissible. The last example correctly suggests that all polynomials are rational expressions. A rational function has a rule that can be written as: fx () = rational expression in x . PART D: ALGEBRAIC FUNCTIONS
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