THE CORRECT ANSWER IS (B). FOR THE EQUATION KX2 – 4X + K = 0 TO HA...

36. The correct answer is (B). For the equation Kx

²

– 4x + K = 0 to have real roots, its discriminant mustbe ≥ 0.16 – 4K

²

≥ 0 16 ≥ 4K

²

4 ≥ K

²

This is equivalent to|K| ≤ 2 or – 2 ≤ K ≤ 2