线性代数的问题,应该不难,For which values of "a" will be the following s
线性代数的问题,应该不难,
For which values of "a" will be the following system have no solutions?Exactly one solution?Infinitely many solutions?
x + 2y - 3z =4
3 x - y + 5z =2
4 x + y + (a^2-14)z =a+4
上面是a+2不是a+4