(Chapter 1: Review) 1.03 PART C: RATIONAL FUNCTIONSA rational expressionin xcan be expressed in the form: polynomial in xnonzero polynomial in x. Examples: 1x, 5x3±1x2+7x±2, x7+xwhich equals x7+x1±²³´µ¶Observe in the second example that irrational numbers such as 2are permissible. The last example correctly suggests that all polynomials are rational expressions. A rational functionhas a rule that can be written as: fx()=rational expression in x. PART D: ALGEBRAIC FUNCTIONS
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