The input-output relationship of an LTI system is given below.

For an input x[n] shown below

the peak value of the output when x[n] passes through h is ________
Correct Answer
Solution & Step-by-step Explanation
x(n) = δ(n)
x₁(n) = δ(n)

x₂(n) = δ(n) + 2δ(n–1)
⇒ x2(n) = x₁(n) + 2x₁(n–1)
⇒ y₂(n) = y₁(n) + 2y₁(n–1)


The peak value of Output when x(n) passes through h is 5.