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    selenakf's Avatar
    selenakf Posts: 1, Reputation: 1
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    #1

    Dec 6, 2010, 03:15 PM
    sum of cos(wt), t = 1 to inf
    ebaines's Avatar
    ebaines Posts: 12,131, Reputation: 1307
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    #2

    Dec 7, 2010, 06:57 AM

    This is impossible to answer, as it depends on the value of w, and in fact there is no definite answer for certain values of w. If w = 0 or 2 or 4 etc. the series adds to . If it's anything else the series does not converge, although it is bounded.
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    ebaines Posts: 12,131, Reputation: 1307
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    #3

    Dec 7, 2010, 12:34 PM

    selanakf: are you sure you wrote the correct expression:

    sum of cos(wt) for t = 1 to infinity?

    Please explain how this is equal to 0.
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