η uchun yechish
\eta =21
η'ni tayinlash
\eta ≔21
Baham ko'rish
Klipbordga nusxa olish
\eta =\frac{5040}{2!\times 5!}
7 ning faktoriali 5040 ga teng.
\eta =\frac{5040}{2\times 5!}
2 ning faktoriali 2 ga teng.
\eta =\frac{5040}{2\times 120}
5 ning faktoriali 120 ga teng.
\eta =\frac{5040}{240}
240 hosil qilish uchun 2 va 120 ni ko'paytirish.
\eta =21
21 ni olish uchun 5040 ni 240 ga bo‘ling.
Misollar
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