[(1+b)/(1+a) -3/2]²=5/4,求(1+b)/(1+a)
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[(1+b)/(1+a) -3/2]²=5/4,求(1+b)/(1+a)
[(1+b)/(1+a) -3/2]²=5/4,求(1+b)/(1+a)
[(1+b)/(1+a) -3/2]²=5/4,求(1+b)/(1+a)
[(1+b)/(1+a) -3/2]²=5/4
(1+b)/(1+a) -3/2=±√5/2
所以
(1+b)/(1+a)=(-3-√5)/2,(1+b)/(1+a)=(-3+√5)/2
把他设成X,进行求X。进行开方,移向