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Please try the following quiz.

1. Impulse response of a system is e-3t + e-t. This system is: 2. A system is described by [ dx/dt] + 3 x = f(t), where f(t) is the forcing function or input. This system is:
a time-invariant system a time-varying system
a time-varying system a time-invariant system
an unstable system an unstable system
a nonlinear system a nonlinear system
3. Convolution of two time functions f(t) and g(t) is:
ò-¥¥f(l) g(l) dl
ò-¥¥f(l) g(t-l) dl
ò0tf(m) g(t-m) dm
ò-¥0g(l) f(t-l) dl

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Last Modified: 20:24:09 2003/09/04