engineering recuitment HAL Management & Design Trainee Mock Test 2023 Signals and Systems Z Transform
The z transform of the following real exponential sequence
x(n) = {an ;n >= 0} , {= 0 ; n < 0} and a > 0 is given by
1
\(\dfrac{1}{1 - z^{-1}} |z| > 1\)
2
\(\dfrac{1}{1 - az^{-1}} |z| > a\)
3
a for all z
4
\(\dfrac{1}{1 - az^{-1}} |z| < a\)