共50条信息
已知直线\(l_{1}\):\((m+3)x+2y=5-3m\)与\(l_{2}\):\(4x+(5+m)y=16\),求分别满足下列条件的\(m\)的值.
\((1)l_{1}\)与\(l_{2}\)相交;
\((2)l_{1}\)与\(l_{2}\)平行;
\((3)l_{1}\)与\(l_{2}\)重合;
\((4)l_{1}\)与\(l_{2}\)垂直.
求与曲线\(y=f(x)= \sqrt[3]{{x}^{2}} \)在点\(P(8,4)\)处的切线垂直,且过点\((4,8)\)的直线方程.
\((1)\)若直线\(l_{1}\)过点\((3,2)\),且\(l_{1}/\!/l\),求直线\(l_{1}\)的方程;
\((2)\)若直线\(l_{2}\)过\(l\)与直线\(2x-y+7=0\)的交点,且\(l_{2}⊥l\),求直线\(l_{2}\)的方程.
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