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Inverse Tangent Addition Formula
## Formula
$$\tan^{-1}x+\tan^{-1}y=\tan^{-1}\left(\frac{x+y}{1-xy}\right)$$
with the appropriate $$\pi$$ adjustment when required.
## Usage
- Used to combine two inverse tangent expressions.
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Inverse Tangent Addition Formula
## Formula
$$\tan^{-1}x+\tan^{-1}y=\tan^{-1}\left(\frac{x+y}{1-xy}\right)$$
with the appropriate $$\pi$$ adjustment when required.
## Usage
- Used to combine two inverse tangent expressions.
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