# B y t ax t b whereaandbarecomplexconstants ilinearity

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Unformatted text preview: es. b) y t ax t b where a and b are complex constants ( , i) Linearity: , Let Thus, y(t) is not linear. ii) TI: , : , , then , then . y(t) is time invariant. ax t ∈ ). . bt . Since , c) y t i) Linearity: Let Thus, y(t) is not linear ii) TI: , , , then : , , , y(t) is not time invariant (unless b(t) is a constant). . . Since d) 5 i) Linearity: , , Let 5 ii) TI: : 5 , then 5 5 . Thus, y(t) is linear. , then 5 . invariant. 5 , . y(t) is not time e) Suppose we have two subthreshold inputs: , , where 2 and , . The output of both will remain at the restin...
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