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Q:

Which is the commutative property of the LTI System in case of discrete time system?

A) x[n]+h[n]=h[n]+x[n] B) x[n]+h[n]=h[n]*x[n]
C) x[n]*h[n]=h[n]*x[n] D) x[t]*h[t]=h[n]*x[n]
 
Answer & Explanation Answer: C) x[n]*h[n]=h[n]*x[n]

Explanation: We represent commutative property as: x[t]*h[t]=h[t]*x[t] because it proves that convolution of two signals in either order will be same, with x[n] being the input and h[n] being the impulse response.

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