clickerquiz2sec1 - Quiz #02.1 p.1 ECSE-2410 Signals &...

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Quiz #02.1 – p.1 ECSE-2410 Signals & Systems - Fall 2007 Tue 09/11/07 1. Which one of the following systems is linear? (a) sin( x ( t )) (b) y ( t )= ax 2 ( t ), a is a constant (c) y ( t )=sin( t ) x ( t ) (d) y ( t )= x 2 ( t - t 0 ) (e) none of the above
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2. Evaluate = ττ τ d t u u t x ) ( ) ( ) ( (a) = ) ( t x (b) x ( t )= t (c) x ( t )= tu ( t ) (d) x ( t )= u ( t ) (e) x ( t )=1
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3. x ( t )= e - t u ( t ) (a) 1 ) 1 ( ) ( = e t t x δ (b) ) ( 1 ) 1 ( ) ( t u e t t x = (c) ) ( 1 ) 1 ( ) ( t e t t x = (d) ) ( ) 1 ( ) ( t u t e t t x = (e) ) ( ) 1 ( ) ( t t e t t x = 12 0 1 t No answers shown are correct. All received full credit.
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) ( ) ( t u t h = 4. (a) (b)
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clickerquiz2sec1 - Quiz #02.1 p.1 ECSE-2410 Signals &...

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