共50条信息
圆\(C\)与两平行直线\(x+3y-5=0\)和\(x+3y-3=0\)都相切,且圆心在直线\(2x+y+3=0\)上,求圆\(C\)的方程.
直线\(2x-2y+1=0\)到直线\(x-y+1=0\)的距离是 ( )
已知直线\(x+2y-1=0\)与直线\(2x+\left( m+1 \right)y+m-2=0\)平行,则它们之间的距离为
若两平行直线\({{l}_{1}}\):\(x-2y+m=0(m > 0)\)与\({{l}_{2}}\):\(2x+ny-6=0\)之间的距离是\(\sqrt{5}\),则\(m+n=\)
若两平行直线\(3\)\(x\)\(-2\)\(y\)\(-1=0\),\(6\)\(x\)\(+\)\(ay\)\(+\)\(c\)\(=0\)之间的距离为\( \dfrac{2 \sqrt{13}}{13}\),则\(c\)的值是________.
点\(P\)是曲线\(y=x^{2}-\ln x\)上任意一点,则点\(P\)到直线\(x-y+2=0\)的最短距离为\((\) \()\)
进入组卷