1. Is the series Sigma convergent

2. Determine the radius of convergence of the power series Sigma

3. Is the series Sigma convergent

Thx guys!

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- April 2nd 2009, 03:40 AMluoginator3 fun problems on analysis
1. Is the series Sigma convergent

2. Determine the radius of convergence of the power series Sigma

3. Is the series Sigma convergent

Thx guys! - April 2nd 2009, 04:15 AMbobak
- April 2nd 2009, 04:34 AMluoginator
umm..ive tried ratio test...but it doesn't seem to be workin properly coz the fraction is sooooooo huge lol....any good idea man:)?

- April 2nd 2009, 05:07 AMbobak

can you finish off?

Bobak - April 2nd 2009, 05:09 AMluoginator
actually..im worried about 2 and 3....i actually used lim test...like lim ak =0 to test its convergency for question 1....but ur way is nice anyway:)