Question: 1. Consider the following unit-step functions: f(t) = 10u(t 3) g(t) = 3u(-t) +4 h(t) = 4u(1 - t) + 2u(t + 2) i(t)

1. Consider the following unit-step functions: f(t) = 10u(t 3) g(t) =

1. Consider the following unit-step functions: f(t) = 10u(t 3) g(t) = 3u(-t) +4 h(t) = 4u(1 - t) + 2u(t + 2) i(t) = tu(2 t) j(t) = u(t) u(t 0.5) + u(t 1) u(t 1.5) + u(t 2) u(t 2.5) k(t) = 3u(t) 2u(-t) +0.8u(1 t) (t) = 3 u(2 t) 2u(t) (a) Evaluate the function f(t) at t = -4,0 and +4. [3] [2] [1] [14] (b) Evaluate the function h(t) at t = 0 and +2. (c) Evaluate the function k(t) at t = 0.8. (d) Sketch all the function over the range -3

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