a--- + b = 1 (b不等于1)求X x-am n- - --- = 0 (m不等于n mn不等于0)求M x x+1

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a--- + b = 1 (b不等于1)求X x-am n- - --- = 0 (m不等于n mn不等于0)求M x x+1
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a--- + b = 1 (b不等于1)求X x-am n- - --- = 0 (m不等于n mn不等于0)求M x x+1
a
--- + b = 1 (b不等于1)求X
x-a
m n
- - --- = 0 (m不等于n mn不等于0)求M
x x+1

a--- + b = 1 (b不等于1)求X x-am n- - --- = 0 (m不等于n mn不等于0)求M x x+1
a/(x-a)+b=1
a/(x-a)=1-b
因为b不等于1,有
x-a=a/(1-b)
x=a/(1-b)+a=(a-ab+a)/(1-b)
x=(2a-ab)/(1-b)

a
--- + b = 1
x-a
a/(x-a)=1-b
a/(1-b)=x-a
x=a/(1-b)+a=(2a-ab)/(1-b)

a/(x-a)+b=1
a/(x-a)=1-b
所以(x-a)/a=1/(1-b)
x-a=a/(1-b)
x=a/(1-b)+a=(a-ab+a)/(1-b)
所以x=(2a-ab)/(1-b)
m/x-n/(x+1)=0
求m?
m/x=n/(x+1)
m=nx/(x+1)
大概是求x吧?
m/x=n/(x+1)
对角相乘
m(x+1)=nx
mx+m=nx
nx-mx=m
(n-m)x=m
x=m/(n-m)