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Approximation of Negative Powers
## Formula
For:
$$|x|\ll1$$
$$(1+x)^{-n}\approx1-nx+\frac{n(n+1)}2x^2$$
## Usage
- Used to approximate reciprocal powers when $x$ is small.
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Approximation of Negative Powers
## Formula
For:
$$|x|\ll1$$
$$(1+x)^{-n}\approx1-nx+\frac{n(n+1)}2x^2$$
## Usage
- Used to approximate reciprocal powers when $x$ is small.
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