CUET Mathematics - If a, b and c are all different from zero and vmatrix 1+a & 1 & 1 \\ 1 & 1+b & 1 \\ 1 & 1 & 1+c vmatrix = 0, then the value of 1/a + 1/b + 1/c is : | PYQs + Solutions | AfterBoards