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October 21, 2014

October 21, 2014

Posted by **sh** on Tuesday, June 16, 2009 at 9:25pm.

x+3x²+9x³+...

3x²/x

what are the next steps?

Thanks in advance.

- Math -
**drwls**, Wednesday, June 17, 2009 at 12:33amThe ratio of succesasive terms is 3x. This must be less than 1 for the infinite series to have a finite sum. Therefore x < 1/3 is required.

- Math -
**sh**, Wednesday, June 17, 2009 at 2:08amThanks!

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