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6 a) The system cannot be time-invariant.
 
6 a) The system cannot be time-invariant.
  
<math>X_k[n] = \delta[n - k] \rightarrow Y_k[n] = (k + 1)^2 \delta[n - (k + 1)]</math>
+
<math>X_k[n] = \delta[n - k] \rightarrow system \rightarrow Y_k[n] = (k + 1)^2 \delta[n - (k + 1)]</math>

Revision as of 16:35, 11 September 2008

6 a) The system cannot be time-invariant.

$ X_k[n] = \delta[n - k] \rightarrow system \rightarrow Y_k[n] = (k + 1)^2 \delta[n - (k + 1)] $

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