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Infinite GP with Alternating Terms
## Formula
For:
$$a-ar+ar^2-ar^3+\cdots$$
where:
$$|r|<1$$
the sum is:
$$S_\infty=\frac{a}{1+r}$$
## Usage
- Used for infinite geometric series with alternating signs.
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Infinite GP with Alternating Terms
## Formula
For:
$$a-ar+ar^2-ar^3+\cdots$$
where:
$$|r|<1$$
the sum is:
$$S_\infty=\frac{a}{1+r}$$
## Usage
- Used for infinite geometric series with alternating signs.
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