Calculating time period of cos(pi/8 n*n)

  • Thread starter tina_singh
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  • #1
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can some one please help me calculate the time period of the signal cos(pi/8 n*n).
 

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  • #2
14
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actually what really confuses me is the term n square..i hav solved similar questions where cos was a function of n(t in continous time).

please help me with this question..
i will be really greatful
 
  • #3
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actually what really confuses me is the term n square..i hav solved similar questions where cos was a function of n(t in continous time).

please help me with this question..
i will be really greatful

It seems like that this function is not periodic. Enter this in wolfram alpha, check out the graph.
 
  • #4
rude man
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actually what really confuses me is the term n square..i hav solved similar questions where cos was a function of n(t in continous time).

please help me with this question..
i will be really greatful

Write out the first dozen or so terms, then the periodicity will become apparent.
 

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