.

  1. II. . .
  2. VIII.2. ֲͲ ˲ Ѳ ˲
  3. . . . , .
  4. .
  5. .
  6. .
  7. ² ֲͲ ղͲ

. , , .

x , .

. , .

. .

! n! = 1 * 2 * 3 * 4 * ... * n

3! = 1 * 2 * 3

2! = 1 * 2

1! = 1

0! = 1

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