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Signal and system homework

Discussion in 'Electronics Homework Help' started by vick5821, Dec 28, 2012.

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  1. vick5821

    vick5821

    700
    0
    Jan 22, 2012
    Dear all,

    [​IMG]
    For the first question, I am stuck in c) and d), can anyone guide me ?
    Do I do it correctly in a) and b) ?

    [​IMG]
    For 2nd question, since for(i), there is no t there, is that means I evaluate the cos and get a value, then I integrate it ?

    How bout for (ii) too ?

    For this 3rd question, how can I solved for whether the signal is energy or power ?
    [​IMG]

    And for this last question, did I do it correctly ?
    [​IMG]

    Correct me if I am wrong ><
    I am so confuse ><

    Thanks

    Urgent!
     
    Last edited: Dec 28, 2012
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,497
    2,838
    Jan 21, 2010
    part iii is clearly periodic, it seems to be a simple sin function
     
  3. vick5821

    vick5821

    700
    0
    Jan 22, 2012
    I just write my answer based on what I seen and observe ? No need working ?

    Thanks
     
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