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e3_prac_F2010

# e3_prac_F2010 - M408C Practice problems for Exam#3...

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M408C Practice problems for Exam #3 Directions . Indicate the correct answer for each problem by filling in the appropriate space, as in (A) ( ) (C) (D) (E). 1) lim x →∞ 3 x + 4 x 2 + 2 = (A) 3. (B) 3 2 . (C) 9 2 . (D) 6. (E) 3 4 . 2) The pressure in a chemical reactor is given by p ( t ) = 4 t 1 + 2 t 2 , 0 t 1. At what time does the maximum pressure occur? (A) 1. (B) 1 2 . (C) 1 2 2 . (D) 0. (E) 1 2 . 3) The set of all points where f ( x ) = 3 sin x + cos x , 0 x π/ 2 is decreasing is: 4) The radius of a balloon as a function of pressure is r ( p ) = radicalbig p 2 + 6 p, p 0. If p = 2 ± 0 . 1 then, by linear approximation, r = 5) Which of the following statements about f ( x ) = x 4 3 x 2 , −∞ < x < is false ? radicalBig 3 2 .

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e3_prac_F2010 - M408C Practice problems for Exam#3...

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