The input x(t) and output y(t) of a system are related as y(t) = ∫ _{−∞}^{t}x(τ )cos(3τ )dτ . The system is

Question

The input x(t) and output y(t) of a system are related as y(t) = ∫ _{−∞}^{t}x(τ )cos(3τ )dτ . The system is

Examsnet · Accepted Answer

Correct Answer is : not time-invariant and not stable

GATE Electrical Engineering (EE) 2012 Solved Paper