题目 Problem Find the values of kkk for which the system of equations x−y+z=0,x+ky+3z=0,x+2y+kz=0,\begin{aligned} x - y + z &= 0,\\ x + ky + 3z &= 0,\\ x + 2y + kz &= 0, \end{aligned}x−y+zx+ky+3zx+2y+kz=0,=0,=0, does not have a unique solution. [3] 题目中文翻译 求 kkk 的值，使得方程组 x−y+z=0,x+ky+3z=0,x+2y+kz=0\begin{aligned} x - y + z &= 0,\\ x + ky + 3z &= 0,\\ x + 2y + kz &= 0 \end{aligned}x−y+zx+ky+3zx+2y+kz=0,=0,=0 没有唯一解。 解答
