If y(t) =1 tx(t)dt, the system is—C– ∞

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If y(t) = 1 ^t x(t)dt, the system is—
C _{– ∞}

1. causal
2. non-causal
3. static
4. None of these

Correct Option: A

y(t) =	1		^t	x(t)dt
	C		_{– ∞}

Here, the I/O equation of continuous time system. The integral is over preceding signal data only.
Hence, the system is causal.