Question

Find the value of [d(t) – u(t-1)] * x[t+1].

(a) x(t+1) – (dollarSign)x(t)

(b) (dollarSign)x(t) – x(t+1)

(c) x(t) – (dollarSign)x(t-1)

(d) (dollarSign)x(t-1) – x(t+1)

The question was posed to me by my college professor while I was bunking the class.

The query is from Continuous Time Convolution topic in section Time-Domain Analysis of CT Systems of Signals and Systems

Answer 1

Correct choice is (a) x(t+1) – $x(t)

The best explanation: The delta function convolved with another function results in the shifted function.