两直线l1:ax-by+b=0和l2(a-1)x+y+b=0,若l1‖l2且l1与l2的距离为根号2/2,求a,b的值
来源:学生作业帮助网 编辑:作业帮 时间:2024/11/16 01:29:38
xJ1_.3$!wYf|B n*tQ`AQbDpc-]|̀nu{Η{NgiY<6wfgqҜrKKLK<x,ŭŲv}<Ŧ~xפH/gZUml',KB6w!40D'$`@6Q1䦻{3Se>
';IRXVM7
{zI>$=0)roH!RA\u/ V'>JSi
两直线l1:ax-by+b=0和l2(a-1)x+y+b=0,若l1‖l2且l1与l2的距离为根号2/2,求a,b的值
两直线l1:ax-by+b=0和l2(a-1)x+y+b=0,若l1‖l2且l1与l2的距离为根号2/2,求a,b的值
两直线l1:ax-by+b=0和l2(a-1)x+y+b=0,若l1‖l2且l1与l2的距离为根号2/2,求a,b的值
l1过A(0,1)
l1 // l2,a :a-1 = -b :1,a = b - ab,a = b/(1+b)
A(0,1)与l2的距离为d = |1 + b|/√[(a-1)^2 + 1] = √2/2
(1+b)^2/√[(a-1)^2 + 1] = 1/2
2(1+b)^2 = [b/(1+b) -1]^2 +1
b = -1+√2 (a = (2-√2)/2) 或b = -1-√2 (a = (-2-√2)/2)
已知两条直线L1:ax-by+4=0和L2:(a-1)x+y+b=0,L1垂直L2…已知两条直线L1:ax-by+4=0和L2:(a-1)x+y+b=0,L1垂直L2,且L1过点(-3,-1).求满足条件的a,b的值.
两直线l1:ax-by+b=0和l2(a-1)x+y+b=0,若l1‖l2且l1与l2的距离为根号2/2,求a,b的值
已知两直线L1:ax-by+4=0和L2:(a-1)x+y+b=0求满足下列条件的a,b值:L1已知两直线L1:ax-by+4=0和L2:(a-1)x+y+b=0求满足下列条件的a,b值:L1//L2,且坐标原点到两条直线的距离相等.
已知两直线L1:ax-by+4=0和L2:(a-1)x+y+b=0.若L1 // L2且坐标原点到两直线的距离相等,求a,b的值?
已知两条直线l1:ax-by+4=0 l2:(a-1)x+y+b=0.l1与l2平行,并且坐标原已知两条直线l1:ax-by+4=0 l2:(a-1)x+y+b=0.l1与l2平行,并且坐标原点到l1,l2的距离相等.求a,b的值
已知两直线L1:ax-by+4=0,L2:(a-1)x+y+b=0.直线L1与L2平行,并且坐标原点到L1,L2的距离相等,求a,b的值拜
已知两直线L1:ax-by+4=0,L2:(a-1)x+y+b=0,求分别满足下列条件的a,b(1)直线L1过点(-3,-1),并且直线L1与L2垂直(2)直线L1与L2平行,并且坐标原点到L1,L2的距离相等
已知两条直线L1:aX-bY+4=0,L2:(a-1)x+y+b=0.求分别满足下列条件的a和b的值.(1)求直线L1过点(-...已知两条直线L1:aX-bY+4=0,L2:(a-1)x+y+b=0.求分别满足下列条件的a和b的值.(1)求直线L1过点(-3,-1),
两直线l1:ax+by=0,l2:(a-1)x+y+b=0,若直线l1,l2同时平行于直线l:x+2y+3=0,则a,b的值为?
已知直线L1:ax-by+4=0和L2:(a-1)x+y+b=0,L1⊥L2,L1过(-3,-1),求A,B的值有助于回答者给出准确的答案
L1:ax-by+4=0 L2:(a-1)x+y+b=0 L1、L2平行,坐标原点到两直线距离相等.求a,b解:首先,将L1与L2的表达式变形,得 L1:y=(a/b)x+4/b L2:y=(1-a)x-b 由L1平行于L2,得 a/b=1-a (斜率相等) 由坐标原点到两直线距离相等,
已知俩直线L1:Ax-By+4=0和L2:(A-1)x+y+B=0.若L1//L2.且坐标原点到俩直线的距离相等..求A,B的植
若两相异直线L1:ax+by-1=0和L2:mx+ny-1=0的交点为P(3,2),求经过两点(a,b),(m,n)的直线L的方程
已知直线L1:ax+by+4=0,直线L2:(1-a)x-y-b=0,直线L3:x+2y+3=0且这三条直线两两平行,求实数a,b的值
已知两条直线l1:ax-by+4=0,l2:(a-1)x+y+b=0,求分别满足下列条件的a,b的值已知两直线l1:ax-by+4=0,l2:(a-1)x+y+b=0.求分别满足下列条件的a,b的值.(1)直线l1过点(-3,-1),并且直线l1
已知两条直线l1:ax-by+4=0,l2:(a-1)x+y+b=0,求分别满足下列条件的a,b的值已知两直线l1:ax-by+4=0,l2:(a-1)x+y+b=0.求分别满足下列条件的a,b的值.(1)直线l1过点(-3,-1),并且直线l1
1、过点(-5,-4),使它与两坐标轴相交且与坐标轴所围成的三角形面积为5,求直线方程.2、直线l1:ax-by+4=0,直线l2:(a-1)x+y+b=0,l1与l2平行,并且坐标原点到l1、l2距离相等.求a,b的值
已知直线L1和L2夹角的平分线Y=X,如果L1的方程是AX+BY+C=0(A,B>0),那么L2的 方程是