MATH 211 Quiz: MATH 211 NIU Quiz2 3
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5x + 3: (5 pts; p113 #21) 7x2 lim x 2: (5 pts; p113 #21) lim x 2 x2 + x 6 x2. = 2x (see #3 for the last step) Friday, 1/31/03: (5 pts; p148 #32) find f (x) for f (x) = 0. 01x2. 0. 4x + 50. f (x) = . 02x . 4: (5 pts; p148 #20) d dx (cid:18) 5 x . 5 x 4/5 + 2x 2: (a) (5 pts; p137 #20) use the de nition f (x) = lim h 0 f (x + h) f (x) h to nd f (x) for f (x) = 2 x f (x) = lim h 0 f (x + h) f (x) h. = lim h 0 x + h h. 1 h (cid:20) 2x 2x 2h x(x + h) (cid:21) = lim h 0.
