deletions | additions       diff --git a/untitled.tex b/untitled.tex  index 167303a..782bf68 100644  --- a/untitled.tex  +++ b/untitled.tex 
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lnz^n=&lnre^{i\theta}\\  nlnz=& lnr + lne^{i\theta}\\  nlnz=& lnr + i\theta\\  lnz =& \frac{lnr}{n} + \frac{i\theta}{n}\\