若圆x^2+y^2-6x+6y+14=0关于直线l:ax+4y-6=0对称,则直线l的斜率是求详解
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若圆x^2+y^2-6x+6y+14=0关于直线l:ax+4y-6=0对称,则直线l的斜率是求详解
若圆x^2+y^2-6x+6y+14=0关于直线l:ax+4y-6=0对称,则直线l的斜率是
求详解
若圆x^2+y^2-6x+6y+14=0关于直线l:ax+4y-6=0对称,则直线l的斜率是求详解
圆关于直线对称,圆心在直线上.
x²+y²-6x+6y+14=0
(x-3)²+(y+3)²=4
圆心坐标(3,-3) x=3,y=-3代入直线方程:
3a+4×(-3)-6=0
a=6
直线方程变为6x+4y-6=0
y=(-3/2)x+(3/2),直线斜率为-3/2
圆(x - 3)^2 + (y + 3)^2 = 4关于直线l:ax+4y-6=0对称,则圆心(3, -3)在直线l上
3a - 12 - 6= 0
a = 6
直线: 6x + 4y - 6 = 0, y = -3x/2 +3/2
直线l的斜率是-3/2
6(x-y)-2(x+y)=14 3(x-y)+(x+y)=5
x*x+2x-y*y+6y-8=0,x+y不等于2,求x-y的值
已知X*X+Y*Y+6X-8Y+25=0 求(Y/X)+(X/Y)-2=?
【2(x-y)(x-y)(x-y)-8(x-y)(x-y)(x+y)+6y(x-y)(x-y)]/2(x-y)(x-y)
【2(x-y)^3-8(x-y)^2(x+y)+6y(x-y)^2】/2(x-y)^2=
已知x^2+y^2+13-4x+6y=0,求(2x-y)^2-2(2x-y)(x+2y)+(x+2y)^2
已知x.x+y.y+8x+6y+25=0,求代数式(x.x-4y.y)/(x.x+4xy+4y.y)-x/(x+2y)的值
x+y/2+x-y/6=5 2(x+y)-3(x-y)=-2
[(2x-y)(2x+y)+y(y-6x)]÷2x=?
(x+y)/2- x-y/2=6 3(x+y)=4(x-y)
x+y/3+x-y/2=6 4(x+y)-2(x-y)=40
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{3(x+y)-4(x-y)=4 {x+y/2 + x-y/6=1
{6(x-y)-7(x+y)=21 {2(x-y)-5(x+y)=-1
x+y/2+x-y/3=6,4(x+y)-3(x-y)=-20
{(x+y)/2+(x-y)/3=6 4(x+y)-3(x-y)=-20
4(x+y)-3(x-y)=-20,2/x+y+3/x-y=6
若(x-y)/(x+y)=3 则(x+2y)/(6x-7y)等于