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Integral of $$\frac1{1+x^2}$$
## Formula
$$\int\frac{dx}{1+x^2}=\tan^{-1}x+C$$
## Usage
- Used to integrate rational functions having denominator $$1+x^2$$.
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Integral of $$\frac1{1+x^2}$$
## Formula
$$\int\frac{dx}{1+x^2}=\tan^{-1}x+C$$
## Usage
- Used to integrate rational functions having denominator $$1+x^2$$.
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