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3. (10 Points) (True or False). You must justify your answer either mathematically or in well written English sentences, whichever is most appropriate. a. (1
3. (10 Points) (True or False). You must justify your answer either mathematically or in well written English sentences, whichever is most appropriate. a. (1 Point) The lim f(x) depends on how f (a) is defined. x->a' b. (1 Point) If lim f(x) =0 and limg(x) =0, then lim / (x) must exist. x->a g(x) c. (1 Point) If f(x) = x -4 (x - 2) and g(x) =x+2, then we can say that f(x) and g(x) are identical functions. d. (1 Point) If lim f (x) =co and limg(x) =co , then lim [f(x)-g(x)]=0. e. (1 Point) If f(x) =x3, then f'(0) exists. f. (1 Point) The function f (x) = x has a derivative at x=0. g. (1 Point) d In()_ 1 dx h. (1 Point) For a constant, c, and a function, f(x), derivative of a constant times a function is def (x) _df (x) dx dx and the product rule gives def (x)_ cdf (x) + f (x) C. Hence, the two rules do not agree. dx dx i. (1 Point) If f"(a)=0, then f has an inflection point at a. j. (1 Point) If f (x) is continuous on a closed interval, then it is enough to look for at the points where f'(x) =0 in order to find its global (absolute) maxima and minima
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