document.write( "Question 579910: Determine if the following series are convergent of divergent. If the series is geometric find the sum as well:\r
\n" ); document.write( "\n" ); document.write( "[cos(n*pi/3)] / n factorial
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Algebra.Com's Answer #371251 by KMST(5328)\"\" \"About 
You can put this solution on YOUR website!
It is not a geometric series.
\n" ); document.write( "\"-1%3C=cos%28n%2Api%2F3%29+%3C=1\", and \"n%21\" (n factorial) grows without bounds , so \"a%5Bn%5D=cos%28n%2Api%2F3%29%2Fn%21\" converges to zero
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