GATE ECE 2012 | Question: 29

Question

The input $x(t)$ and output $y(t)$ of a system are related as $y(t)=\underset{-\infty}{\int}x(\tau)\cos(3\tau)d\tau$. The system is

• A. time-invariant and stable
• B. stable and not time-invariant
• C. time-invariant and not stable
• D. not time-invariant and not stable