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aximum volume of the box. 17. Let f(x) = V3x2 + 1. Evaluate f' (1). 18. For x 2 0, the horizontal line y = 2 is an asymptote of the function f. Which of the following statements must be true? (a) f(0) = 2 (b) f(x) # 2 for all x 2 0 (c) f(2) is undefined d) lim f(x) = 00 I-+ 2 (e) lim f(x) = 2 19. Which of the following equals the area under the graph of f(x) = 142- above the r-axis from x = 3 to x = 6? (a) lim - n too n i=1 1+ 1/3 + 32 n n 1 lim n-too n i=1 1+ 100 . (c lim - n-too n i= 1 -1/3+ 3 100. n (d) lim n-too n i=1 1+v 1 e lim I'M : n-too n ill+1+ 32 2