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  1. Eng.SalahEddin

    plzzzzzzzzz help me .....electronic System for Competition

    hello everybody.... i've been asked to get an electronic system that used often in T.V competitions.... In my university , me and group of my friends establishd "Cultural Club". and we are preparing for a competition between the faculties in our Uni.. What we need is that system which makes the...
  2. Eng.SalahEddin

    second order difference equation help

    :-\ this is a system described by this 2nd order difference equation: y[n] + y[n-1] + 1/4 y[n-2] = x[n]             jw find H( e ) ? find the expanded form using Partial Fraction Expansion? find the impulse response h[n]? find the step response S[n] using convolution? is this system...
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