maths

Chak Kui

2009-12-03 8:57 pm

1/ab+1/bc=?

回答 (2)

[匿名]

2009-12-04 1:20 am

✔ 最佳答案

the answer is 1/a-1/c

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用戶9724

2009-12-03 11:34 pm

1/(ab)+1/(bc)
=c/(abc)+a/(abc)
=(c+a)/(a+b+c)

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