A unit impulse function is defined as1. a pulse of area 12. a pulse compressed along the horizontal axis and stretched along vertical axis keeping the area unity3. \(\frac{{du}}{{dt}}\)4. δ(t) = 0, t ≠ 0Which of the above statements are correct?

A unit impulse function is defined as1. a pulse of area 12. a pulse co

1.	A unit impulse function is defined as1. a pulse of area 12. a pulse compressed along the horizontal axis and stretched along vertical axis keeping the area unity3. \(\frac{{du}}{{dt}}\)4. δ(t) = 0, t ≠ 0Which of the above statements are correct?
A.	1, 2 and 3 only
B.	1, 3 and 4 only
C.	2, 3 and 4 only
D.	1, 2, 3 and 4
Answer» E.