MATRIX

condn no soln..
Δ=0 and at least one of Δ₁,Δ₂,Δ₃≠0

wat do those triangles represent???????

determinant..

sry............but i din knew this condition.....................

i only knew \bigtriangleup=0

and (adj A)B ≠0

Now,for no solution,according to cramer's rule,

1 1 1
1 2 3 = 0, where k=lamda
1 2 k
u can get lamda =3
then according to what eureka said,
1 1 6
1 2 10 ≠0,
1 2 u
u get u≠10