Question

for what value of K the equations Kx^2+x+k has equal roots​

Answer 1

Given polynomial = kx²+x+k

where a = k , b = 1 , c = ,k

For equal roots, discriminant must be equal to 0.

Discriminant = b²-4ac

1²-4×k×k = 0

-4k²=-1

k² = ¼

k= ±½

When k = ± ½ the roots will be equal.