Determine which of the following is a linear system by applying the principle of superposition.
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August 5, 2017Determine which of the following is a linear system by applying the principle of superposition.
1. (TCO 1) A signal that is a function of time has following properties or the following applies to it. (Points : 4) it is impossible to change the properties of a signal.
A signal can be modified by a system which applies a transformation to it.
an electrical signal can only be transformed into an electrical signal.
an electrical signal can only be transformed into a non-electrical signal.
5.5 sin(?t). 6 sin(?t – ?/4). 6 sin(?t + ?/4). 5.5 sin(?t – ?/4). |
y = x2 y= 2 x + 2 y = 2x |
y(n) = , value at n = 2 is -1 y(n) = , value at n = 2 is 0.0174 y(n) = , value at n = 2 is 0 y(n) = , value at n = 2 is 0.841 |
No, it is not violated. Yes, it is violated. Insufficient data to answer the question Question cannot be answered because sampling time is unknown |
15. pi/2. 100. 0. |
– 2?(n-1) – 2 ?(n-2) + ? (n-3) +? (n-4) ?(n-1) – 2 ?(n-2) – 2 ? (n-3) – ? (n-4) -2?(n) – ?(n-1) – ? (n-2) + + ?(n-3) ?(n-1) + 2 ?(n-2) + ?(n-3) +2 ? (n-4) |
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