#1
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Help w/ Geometric Series Involving cos(xn)
I need to show that:
2*sum[ (( 1/3)^t) * cos(wt) ] where we are summing from t=1 to inf, is equal to: ( 1 - 3cos(w) ) / ( 3cos(w) - 5 ) Any links/tips would be helpful. I haven't been able to find anything via google. |
#2
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Re: Help w/ Geometric Series Involving cos(xn)
cos(wt) is the real part of exp(iwt), so your series is the real part of an absolutely convergent complex geometric series.
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#3
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Re: Help w/ Geometric Series Involving cos(xn)
ok
solved in probability forum thanks for the post ADDboy |
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