
Jak to udělat, prosím?
https://imgur.com/FSmG3fQ
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↑ tawerlight:
Ahoj, vyuzij toho, ze
[mathjax]{\displaystyle {n-2 \choose 3} + {n-2 \choose n-4} \;\; = \;\; {n-2 \choose 3} + {n-2 \choose 2} \;\; = \;\; {n-1 \choose 3} } [/mathjax]
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