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Unformatted text preview: M408C Practice problems for Exam #2 Directions . Indicate the correct answer for each problem by filling in the appropriate space, as in (A) ( ) (C) (D) (E). 1) If f ( x ) and g ( x ) are continuous for all x , which function below might not be continuous for all x ? (A) f ( g ( x )). (B) braceleftbigg xf ( x ) , x xg ( x ) , x > . (C) f ( x ) 3 cos( g ( x )) . (D) braceleftbigg f ( g ( x )) , x g ( f ( x )) , x > . (E)  f ( x ) g ( x )  . 2) For f ( x ) as shown, on what subset of [ 2 , 4] is f ( x ) 0. 1 2 4 3 x21 y y = f(x) (A) [ 2 , 1] [1 , 3]. (B) [ 1 , 1) [3 , 4]. (C) [ 2 , 1]. (D) [1 , 3]. (E) [ 1 , 1] [3 , 4]. 3) The position s [cm] of a particle at time t [sec] is given by s ( t ) = 3 tan(2 t ), t 0. What is the acceleration of the particle at time t = / 8? (A) 36cm / sec 2 . (B) 12cm / sec 2 . (C) 32cm / sec 2 . (D) 48cm / sec 2 . (E) 24cm / sec 2 ....
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This note was uploaded on 10/19/2010 for the course EE 306 taught by Professor Ambler during the Fall '07 term at University of Texas at Austin.
 Fall '07
 Ambler

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