railway DFCCIL Junior Executive 2023 (CBT 1 & CBT 2) Mock Test Signals and Systems Introduction To Signals and Systems
Which of the following statements are true?
A) δ(2t) = 2δ(t)
B) δ[2n] = δ[n]
C) δ(-t) = δ(t)
1
A, B and C
2
B and C
3
A and C
4
A and B