若|m+n|=|m|+|n|,则m,n满足的条件是( );若|m-n|=|m|+|n|,则m,n满足的条件是( );若|m+n|=|m|-|n|,则m,n满足的条件是( );若|m-n|=|m|-|n|,则m,n满足的条件是( ).
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若|m+n|=|m|+|n|,则m,n满足的条件是();若|m-n|=|m|+|n|,则m,n满足的条件是();若|m+n|=|m|-|n|,则m,n满足的条件是();若|m-n|=|m|-|n|,则
若|m+n|=|m|+|n|,则m,n满足的条件是( );若|m-n|=|m|+|n|,则m,n满足的条件是( );若|m+n|=|m|-|n|,则m,n满足的条件是( );若|m-n|=|m|-|n|,则m,n满足的条件是( ).
若|m+n|=|m|+|n|,则m,n满足的条件是( );若|m-n|=|m|+|n|,则m,n满足的条件是( );若|m+n|=|m|-|n|,则m,n满足的条件是( );若|m-n|=|m|-|n|,则m,n满足的条件是( ).
若|m+n|=|m|+|n|,则m,n满足的条件是( );若|m-n|=|m|+|n|,则m,n满足的条件是( );若|m+n|=|m|-|n|,则m,n满足的条件是( );若|m-n|=|m|-|n|,则m,n满足的条件是( ).
mn≥0
m≥0,n≤0
mn≤0且|m|>|n|
1. m≥0,n≥o
纠正一下所有不等号都应该含有等号
若M⊊N,则M∪N=N.
若m×m+n×n-6n+4m+13=0,则m×m-n×n=?
若(m+n)(m-n)²-mn(m+n)=(m+n)×M ,则M的值是?
若(m+n)(m-n)²-mn(m+n)=(m+n)×M ,则M的值是?
若(m+n)(m-n)^2-mn(m+n)=(m+n)·M,则M是
若M-N>0,则M>N;若M-N
m/n=7/3则m+n/m-n
若代数式m-n/m+n=7,那么代数式m-n/m+n-14(m+n)/m-n
已知1/m+1/n=1/m+n,则m*m/n*n+n*n/m*m
若m,n(m
若m、n(m
n=m/M
若|m+n|=-(m+n),则 A.m+n=0 B.m+n>0 C.m+n<0 D.m+n≤0
已知3m=2n,则m/(m+n)+n/(m-n)-n^2/(m^2-n^2)=?
(m-2n/n-m)-(n/m-n)=
m-[n-3m-(m-n)]=?
已知3m=4n,则m/m+n+n/m-n-m^2/m^2-n^2=
若|m|=4,|n|=1/2 1,若m+n>m-n,则m+n=?2,若|m+n|=|m|+|n|若|m|=4,|n|=1/21,若m+n>m-n,则m+n=?2,若|m+n|=|m|+|n|,则m、n的值分别是: