ab=a-b
ab-a+b=0
a(b-1)=-b
a=b/(1-b)
b=1/3時(shí),a=1/2
b=1/4時(shí),a=1/3
1/2和1/3
1/3和1/4
1/4和1/5
1/n和1/(n+1)
兩個(gè)分?jǐn)?shù)相乘,正好等于兩個(gè)數(shù)相減,這兩個(gè)數(shù)是幾?請(qǐng)你舉兩個(gè)例子
兩個(gè)分?jǐn)?shù)相乘,正好等于兩個(gè)數(shù)相減,這兩個(gè)數(shù)是幾?請(qǐng)你舉兩個(gè)例子
數(shù)學(xué)人氣：991 ℃時(shí)間：2020-09-24 17:27:57
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