Question

What is the following expression equal to: h*(c*(b+d(t))), d(t) is the delta function

(a) h*c + h*b

(b) h*c*b + b

(c) h*c*b + h*c

(d) h*c*b + h

I got this question at a job interview.

I'm obligated to ask this question of Properties of LTI Systems topic in portion Time-Domain Analysis of CT Systems of Signals and Systems

Answer 1

Correct choice is (c) h*c*b + h*c

For explanation I would say: Apply commutative and associative rules