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18.03.2013

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1...2 

Ax2 Cxx - 1 = 48.

: x = 4.


Ax5

Cx - 2x - 5

= 336.

: x = 8.


Ax + 1x - 1 + 2Px - 1 = 30/7 Px .

: x = 7.


Px + 3

Ax5Px - 5

= 720.

: x = 7.


nk n - km - k = mk nm

: .


Cnk + Cnk - 1 = Cn + 1k.

: .


1...2 
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