The value(s) of k for which the quadratic equation 2x 2 - kx + k = 0 has equal roots is (are) 1. 0 only 2. 4 3. 8 only 4. 0, 8

Given , 2x 2 - kx + k = 0 has equal roots Comparing equation with ax 2 + bx + c = 0 a= 2 , b = -k , c = k Since, equation has equal roots ∴ b 2 - 4ac = 0 ∴ Option 4 is the correct option.