1
GATE EE 2017 Set 1
MCQ (Single Correct Answer)
+1
-0.3
Consider the system with following input-output relation $$y\left[n\right]=\left(1+\left(-1\right)^n\right)x\left[n\right]$$ where, x[n] is the input and y[n] is the output. The system is
A
invertible and time invariant
B
invertible and time varying
C
non-invertible and time invariant
D
non-invertible and time varying