deletions | additions       diff --git a/untitled.tex b/untitled.tex  index c3482c0..b781888 100644  --- a/untitled.tex  +++ b/untitled.tex 
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\begin{align*}  \frac{1}{2\pi i}\int_{c[-2,3]}\frac{\frac{1}{z-4}}{z+2}dz\\  =2\pi i f(-2)\\  =2\pi i -\frac{1}{6}\\  \end{align*}