點解除唔到???

2007-11-17 10:18 am
究竟點解當實數除以0個陣時會 除唔到/無定義 ?
唔該我想要詳盡的解釋,這個問題困擾咗我好耐

回答 (7)

2007-11-17 10:39 am
✔ 最佳答案
好簡單~
a除b既定義係『邊個數乘b係等於a』

等我地睇睇一個例子:
14/2=7
其實即係『搵一個數,乘2要等於14』
? x2=14
咁就即係...燈.燈.燈.櫈.咪係7 lo~

咁聰明既你實知,點解除0係會死呀?
當x/0既時候 (我用x因為x係咩數都得)
我要你找一個數『乘0要等於x』
除非x都係0啦~
否則點搵到一個數係『乘0要等於x』架姐

講埋:
如果x都係0既時候,即係0/0=?
咁即係要『搵一個數乘0要等於0』
咁...其實係咩數都得
所以咪有無限個答案lo~ (infinitely many solutions)

enjoy =)
參考: 我自己,加上早排 professor 都提過
2007-11-17 8:15 pm
你係唔係想問 某個數除0又係等於0﹖

你試諗下﹐ 當 0 ﹐即係冇野﹐佢除幾多都係等於0‥ 跟住﹐例如﹐當1除以0﹐即係話﹐將1分成0份﹐所以係等於0。

希望我理解你條問題係o岩o架啦!Hope I can help you !! ^^

2007-11-17 12:17:05 補充:
重味打完添-.-;;; 你試諗下﹐ 當 0 ﹐即係冇野﹐佢除幾多都係等於0‥ 跟住﹐例如﹐當1除以0﹐即係話﹐將1分成0份﹐而每一份o既份量係0﹐所以係等於0。
2007-11-17 7:16 pm
a +ive number divided by 0 is infinity, because:
1/3=0.3333
1/0.3=3.333
1/0.03=33.33
1/0.003=333.33 .......
1/0=infinity
just like +ive,a -ive number divided by 0 is -infinity
**0/0=any numbers
參考: me
2007-11-17 5:24 pm
假如有人欠你100元,每日還款0元,請問他需還多少日?
希望能幫到你喇!
2007-11-17 10:35 am
for example, 50/1 = 50
50/0.0001 = 500000

when a real number 50 is divided by 0.0001, the answer is 500000
when 50 is divided is divided by 0.0000000001, the answer is 500000000000, because it needs 500000000000 number of 0.0000000001.
therefore, when any real number is divided by 0, the answer is infinite (無定義) because only infinite number of 0 can be multiplied to the real number.

hope i can help u
參考: myself
2007-11-17 10:34 am
其實我相信如果要搵點解~~~~
你上網一定可以搵到好多好專題解釋~~~~
而且d用詞睇完仲混亂過冇睇...

用一個最簡單解既方法係....
for example:
我而家有10kg豆...我可以將佢分成1份...2份...3份....等等
即係10/1=10....10/2=5....10/3=3.333333...等等
但係如果我要你分成0份~~~~即係一份都冇既時候...
咁你點分出黎比人呢...即係咩都冇囉...所以咩數除0都係=0
而無定義既原因係...根本冇可能分成0份...因為歸納於無定義or error
參考: 自己解~~~
2007-11-17 10:31 am
問下你個數學老師


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