If x/x=1, then 0/0=? Is it =1 or =0 or =infinity ?

👨🏻‍🏫 學術台數學

用戶226468

2008-02-01 4:42 pm

If x/x=1, then 0/0=?
Is it =1 or =0 or =infinity ?
What's the answer?

回答 (5)

ultramantam

2008-02-02 1:57 am

✔ 最佳答案

這是未有定義的，因為在定義除法(division)時，已經將分母為0的情況剔除了，所以 x/0是未有定義的，即是不合除法的法則。

/ : Rx(R\{0}) ---> R ( / 為除法的代表附號)

infinity其實也不是實際的一個數字，只是用來代表一個概念。

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Yu Lo

2008-02-02 8:24 am

0/0 = undefined~
it's becoz everything devided by 0 is useless.
so when you press 0/0 on your caltor...
maths error will shown.

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用戶114476

2008-02-01 5:42 pm

It absolutely won't be 0 or 1.
All the equations if the denominator(分母) equals to 0, then basically it equals to infinity.

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雞之戀人

2008-02-01 5:25 pm

Of course, 0/0 = 0

參考: =*-*=

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Frank

2008-02-01 4:59 pm

for any x/0 = infinity!!!

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