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Maclaurin Series used to find associated radius of convergence Q! 
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#1
Dec1105, 08:35 PM

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I have the Maclaurin series for cos (x), is their a way to find its radius of convergence from that?
ALSO Is there a trick to find the shorter version of the power series for the Maclaurin series, I can never seem to find it so instead of the long series with each term but like E summation (the series) 


#2
Dec1105, 08:59 PM

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#3
Dec1105, 09:01 PM

P: 85




#4
Dec1105, 09:20 PM

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Maclaurin Series used to find associated radius of convergence Q!



#5
Dec1105, 09:26 PM

P: 85




#6
Dec1105, 10:26 PM

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You should have found that for *any* value of x, the limit the ratio test gives is always less than 1, hence the series converges for all values of x and we say the radius of convergence is infinity.



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