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# EM-Quiz8 - MATH 3321 Quiz 8 1 Set f(x = 2xex 4 cos 2x 2x...

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MATH 3321 Quiz 8 10/15/09 1. Set f ( x ) = 2 xe - x + 4 cos 2 x + 2 x . L [ f ( x )] = (a) 2 ( s + 1) + 2 s s 2 + 4 + 2 s 3 (b) 2 ( s - 1) 2 + 2 s 2 + 4 + 4 s 2 (c) 2 ( s + 1) 2 + 4 s s 2 + 4 + 2 s 2 (d) 2 ( s + 1) 3 + 2 s s 2 + 4 + 4 s 2 (e) None of the above. 2. Set f ( x ) = 4 cosh x - 3 x 2 + 3 e 3 x . L [ f ( x )] = 3. Set F ( s ) = s 2 - 2 s + 4 ( s - 1)( s + 2) 2 . L - 1 [ F ( s )] = 1

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4. Set F ( s ) = 3 s 2 + 5 s - 1 s 3 + 2 s 2 + 2 s . L - 1 [ F ( s )] = 5. Set f ( x ) = 2 x + 1 , 0 x < 2 3 x, x 2 . L [ f ( x )] = (a) 2 s 2 + 1 s + 3 e - 2 s 1 s 2 (b) 2 s 2 + 1 s + e - 2 s 1 s 2 + e - 2 s 1 s (c) 2 s 2 + 1 s - 2 e - 2 s 1 s 2 + 6 e - 2 s 1 s (d) 2 s 2 + 1 s + 3 e - 2 s 1 s 2 - 5 e - 2 s 1 s (e) None of the above.
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EM-Quiz8 - MATH 3321 Quiz 8 1 Set f(x = 2xex 4 cos 2x 2x...

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