(2010•东城区模拟)已知直线l1:(m+2)x-(m-2)y+2=0,直线l2:3x+my-1=0,且l1⊥l2,则
(2010•东城区模拟)已知直线l1:(m+2)x-(m-2)y+2=0,直线l2:3x+my-1=0,且l1⊥l2,则
已知直线l1:x+my+6=0,l2:(m-2)x+3y+2m=0,求m的值,使得:(1)l1和l2相交;(2)l1⊥l
已知两条直线l1:x+(3+m)y=2,l2:mx+2y=-8,若l1⊥l2,则m=______.
已知直线l1:x+m^2y+6=0,l2:(m-2)x+3my+2m=0 当m为何值时,l1与l2:(1)相交(2)平行
已知m为实数,直线l1:mx+y+3=0,l2:(3m-2)x+my+2=0,则“m=1”是“l1∥l2”的______
(2008•湖北模拟)已知两条直线l1:x+(3+m)y=2,l2:mx+2y=-8,若l1⊥l2,则m=______.
已知直线l1,x+m^2y+6=0,l2=(m-2)x+3my+2m=0,为何值时,l1,l2相交
已知直线l1:(m-2)x+3y+2m=0与l2:x+my+6=0,当l1平行于l2,m为?
已知直线l1:mx+y-1=0和直线l2:x+my-2m=0,当m= 时,l1平行于l2
已知两条直线L1:x+2y+1=0,L2=x+my=0,若L1平行L2,则实数m=
已知两条直线L1:x+2y+1=0,L2=x+my=0,若L1平行L2,则实数m=?
已知里那条直线L1:mx+8y+n=0和L2:2x+my-1=0,试确定m,n的值,使:(1)L1∥L2 (2)L1⊥L