Page 77 - Fixtures
P. 77
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B
B A
( A ()
5 )1
.(V 4 .( )
.
4 .9
H
5H .V V H9
4) 9
.(V )
9
5 (H )
. 9!
4 !!× 5!
(m + n)! m ×n
m!×n!
.C(n + m,n) C(n + m,m)
[Number of Rectangles of a Grid]
