37518 ish 19 2011 . 20:06
:

4 , . 5 , .

:P=1/5+1/4+1/3+1/2+1=1/5!
?=)


:

> 4 , . 5 , .

> :P=1/5+1/4+1/3+1/2+1=1/5!
> ?=)

... 1) , . 2) 4, 4 . 3) - .

: ========1 ====/====2 ========3 ========4

(====/====) - ( )=1/4
(12345)=(2/8)*(1/8)*(6/8)*(4/8)*(2/8) = 12/(8*8*8*8)=0,03.
(12345)=(1/4)*(1/8)*(3/4)*(2/4)*(1/4) = 6/(32*64)=0,03

: 1/4, 1/8, . 3 3/4, - 2/4 - 1/4.


- - - on-line

:
Rambler's Top100