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# FP1 Series watch

1. How does equal this? -- when finfding the sum of the series

I understand stand it when it just r or r sqaured, cubed etc.., but what do you do when it's to the power of r? Whats the standard result?
2. Write out a few terms.

This should be a series you recognise...
3. (Original post by emmaxoxo)
How does equal this? -- when finfding the sum of the series

I understand stand it when it just r or r sqaured, cubed etc.., but what do you do when it's to the power of r? Whats the standard result?
Is this chapter 5 or chapter 6 - proof by induction?
4. (Original post by emmaxoxo)
How does equal this? -- when finfding the sum of the series

I understand stand it when it just r or r sqaured, cubed etc.., but what do you do when it's to the power of r? Whats the standard result?
The standard result is:

A similar result that might be useful is:

I'm pretty sure you could prove these with induction if you needed to.

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Updated: January 23, 2010
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