作者ybin121 (Go go Red sox)
看板TransCSI
标题[问题] 请问辅仁91年这2题
时间Fri Jul 3 23:28:34 2009
请问这两题
5.15% (a)How many arrangements are there of the letters in MISSISSIPPS ?
(b)Show that for any integer n > 0
( n ) +( n )+( n )+......+( n )= 2^n
o 1 2 n
(c)Evaluate the sum(n is a positive integer)
( n ) +2( n )+2^2( n )+......+2^n( n )= 2^n( n )
o 1 2 n n
7.10% Simplify the following Boolean functions
(a) F = x，yz + xy，z，+ xyz + xyz，
（b) F = A’C + A’B + AB’C － BC
麻烦了
谢谢^^
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