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Binomial Expansion of $$(1-x)^n$$
## Formula
$$(1-x)^n=\sum_{r=0}^{n}(-1)^r{}^nC_rx^r$$
## Usage
- Used for alternating binomial coefficients and expressions involving subtraction.
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Binomial Expansion of $$(1-x)^n$$
## Formula
$$(1-x)^n=\sum_{r=0}^{n}(-1)^r{}^nC_rx^r$$
## Usage
- Used for alternating binomial coefficients and expressions involving subtraction.
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