General ⇒ Permutation and Combination
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Permutation and Combination
Please how is this expression written in markdown;
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- Stefan Kottwitz
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Permutation and Combination
welcome to the forum!
I guess you mean LaTeX and not Markdown? With LaTeX, I would use
\binom
from 
Code: Select all
\documentclass{article}\usepackage{amsmath}\begin{document}\[\binom{n}{k} = {}^{52}C_2 = \cdots\]\end{document}