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Given the signal \( x(t) \) below, a) Is the signal \( x(t) \) even or odd? Explain your answer. b) Mathematically describe \( x(t) \) by a single expression valid for all \( t \) c) Sketch \( x(0.5 t-1) \)

Part a: Condition for a signal to be even is: x(t)=x(?t) We can see from graph that x(2)=5 and x(-2)=-5 Hence, for this signal, x(t)?x(?t). Hence, thi