Question

The quadratic kx² - 2kx + 2 = has equal roots if k

Answer 1

Answer:

For equal roots, D=0

√(-2k)^2-4.k.2 = 0

=> 4k^2 -8k =0

=> 4k(k-2) =0

=> Either k=0 or k=2

k=0 is not possible, Hence, k=2