Page 140 - Fixtures

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C(25,2)×C(20,2)×C(15, 2) ( ) C(60, 6) ( )
C(20, 2)×C(40, 4) ( )
C(60,2)2 ( )
10 (
20 B 15 A )
C
.

A3

3!× P(10, 3)× P(35, 3) ( ) 3!×C (10, 3)×C (35, 3) ( )
6 !× P(10, 3)× P(35, 3) ( ) 6 !×C(10, 3)×C(35, 3) ( )

( )

.4 30

.

8 × 28 ! ( ) 12 × 30! ( ) 24 × 30! ( ) 48 × 28! ( )
()
267 − P(26, 7) ( ) 7
267 − 7 ! ( )
ZA )
. 12 1
267 ( )
267 −C(26, 7) ( )
12 [PACAT] (