Page 101 - Fixtures
P. 101
@ @pbjïØ Üa@ @XV
.3! 3
.4! 4
.5! 5
3!
.
. 3! × 3! × 4! × 5! ()
6
.5! 6
.
.
.
.4! ()
. 5! − 2 × 4! = 120 − 48 = 72
.
3
