共50条信息
若\({l}_{1}:x+\left(m+1\right)y+\left(m-2\right)=0,{l}_{2}:mx+2y+8=0 \)的图像是两条平行直线,则\(m\)的值是\((\) \()\)
已知直线\(l_{1}\):\((m+1)x+2y+2m-2=0\),\(l_{2}\):\(2x+(m-2)y+2=0\),若\(l_{1}/\!/l_{2}\),则\(m=\)
已知直线\({{l}_{1}}:2x+2ay-5=0,{{l}_{2}}:(3a+2)x-ay-2=0\) ,若\(l_{1}/\!/l\),则\(a\)的值为\((\) \()\)
经过点\(A(1,2)\)且与直线\(2x-3y+5=0\)平行的直线方程为( )
设集合\(A=\left\{\begin{matrix}\left( x,y \right)\left. 2x+y=1,x,y∈R \right. \end{matrix}\right\}\),\(B=\left\{\begin{matrix}(x,y)\left. a^{2}x+2y=a,x,y∈R \right. \end{matrix}\right\}\),如果\(A∩B=\),则\(a\)的值为
若直线\({{l}_{1}}:x+\left( m+1 \right)y+\left( m-2 \right)=0\)与直线\({{l}_{2}}:mx+2y+8=0\)平行,则\(m=\) .
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