Question

简单线代题///X1+X2+X3+X4+X5=13X1+2X2+X3+X4+3X5=0 X2+2X3+2X4+6X5=3

Answer 1

1 1 1 1 1 1 1 1 1 1 1 1

3 2 1 1 3 0 0 1 2 2 0 3

0 1 2 2 6 3 0 0 0 0 6 0

5 4 3 3 -1 p 0 0 0 0 0 p-2

所以 p=2时有解

p不等于2时无解