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5. A system is formed by cascading two systems as shown below. Given that the impu response of the systems are h,(t)3e-u(t) and h2 (t) (t). Determine: a) The impulse response of the overall system. b) Determine vo (t) if the input is vi(t) 36(t) +2u(t).

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(a) hejh) S+ St 4 St 4 4tSt) (st 4) 2 S V. Is) 9 4t

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