fundamental frequency

Discussion in 'Homework Help' started by josh007, Mar 8, 2016.

  1. josh007

    Thread Starter Member

    Sep 20, 2015
    40
    1
    Greetings All,

    Please can you correct my exam preparation.

    upload_2016-3-8_19-46-31.png

    The frequencies in x(t) is 10 and 30. f=(20.pi)/(2.pi) and f=(60.pi)/(2.pi)
    The digital frequencies are 10/65 and 30/65 which is k/N.
    However for the fundamental frequency of x(t) is at GCD(10,30) = 10 Hz. One period of x(t) is then 1/30 s. The Greatest Common Denominator.

    So the answer is 1. 10Hz.
    Is this correct?

    Regards
    Joshy
     
  2. shteii01

    AAC Fanatic!

    Feb 19, 2010
    3,398
    497
    That is correct.
     
    josh007 and #12 like this.
  3. josh007

    Thread Starter Member

    Sep 20, 2015
    40
    1
    Hi Shteii01,

    Thank you. I am happy i have this correct. Yay.

    regards
    Joshy
     
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