Mark the correct alternative in the following:
If a, b, c are in A.P., then the determinant 
{a + c=2b}
R1→ R1 – R2
R2→ R2 – R3
R1→ R1 – R2
∆=0
1
Mark the correct alternative in the following:
If a, b, c are in A.P., then the determinant
{a + c=2b}
R1→ R1 – R2
R2→ R2 – R3
R1→ R1 – R2
∆=0