Page 128 - Fixtures

@ @QQS@ @ÖïÐaínÜaì@Þî†bjnÜa@ @

. 8! = 2520

2!!× 2!!× 2!!× 2!

n [PACAT] ( )

3, 4, 4, 5,6, 6,7 6000000

.7 6 6000000 n

6

. 6! = 360

2!!×1!!×1!!×1!!×1!
7

6! = 180 n
2!!× 2!!×1!!×1!

. 360 + 180 = 540

[AMC122007] ( )

.

){1,2, 3, 4, 5,6, 7, 8,9,10,11,12}

(

.
.