Discussion :: Signals and Systems
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In the given figure 15.5 show a discrete time system consisting of a unit delay system, a multiplier and a summer, such that y(k) = x(k - 1) + 0.5 x(k). This system
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A.
is linear
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B.
is non linear
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C.
may be linear or non linear depending on value
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D.
impossible to judge
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Answer : Option A
Explanation :
All the elements are linear.
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