CalcNotes0201-page21

CalcNotes0201-page21 - (Section 2.1: An Introduction to...

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(Section 2.1: An Introduction to Limits) 2.1.20 Example 14 Let fx () = x x . Note : f is not a rational function, but it is an algebraic function, since = x x = x 2 x . Remember the piecewise definition of x : x = x ,i f x ± 0 ² x f x < 0 ³ ´ µ Then, = x x = x x = 1, if x > 0 ± x x = ± x < 0 ² ³ ´ ´ µ ´ ´ and f 0 is undefined. (Figure 2.1.letter l)
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