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whats the summation of a^n for a>1 over summation n=0 to N

thanks.

thanks.

- Thread starter amaresh92
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- #1

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whats the summation of a^n for a>1 over summation n=0 to N

thanks.

thanks.

- #2

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Hint: for [itex]\,r\neq 1\,[/itex] a constant, we havewhats the summation of a^n for a>1 over summation n=0 to N

thanks.

$$\sum_{n=0}^mr^n=\frac{r^{m+1}-1}{r-1}$$

DonAntonio

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