0!=1! is it 成立?
回答 (2)
2007-03-18 6:52 am
✔ 最佳答案
0!=1! is it 成立?yes.it is an identity
proof :
nC0 = n! / [(n!)(0!)]
as nC0 = 1
n! / [(n!)(0!)] = 1
0! = 1
also,
1! = 1
so,0! = 1!
參考: em
2007-03-18 5:08 am
To answer this question , we should know about '!'.
n!=1*2*3*4.....*(n-1)*n
because, 0!=0 1!=1
so, 0! not equal to 1!
n!=1*2*3*4.....*(n-1)*n
because, 0!=0 1!=1
so, 0! not equal to 1!
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