Question

do it fast with explaination

Answer 1

-2x + y + z = a ----(1)
x -2y +z = b -----(2)
x + y -2z = c -----(3)

infinity many solution only when ,
D = 0 , D 1= D2 = D3 =0

where D means determinant ,
option (c ) is correct

Answer 2

Answer:

where D means determinant ,

option (c ) is correct