Q) Find the value of ‘k’ for which the quadratic equation (k + 1) y2 – 6 (k + 1) y + 3 (k + 9) = 0, k ≠ – 1 has real and equal roots.  [CBSE 2024 – Series 5 – Set 1] Ans: Given quadratic equation is: (k … Continue reading Find the value of k for which the quadratic equation (k + 1) y2 – 6(k +1) y + 3(k +9)= 0