Question

if the quadratic equation X square - 2 X + K is equal to zero has equal roots then value of k ​

Answer 1

Answer:

Comparing the given quadratic equation with ax(sq.)+bx+c

a=1 , b=-2 ,c=k

b(sq.)-4ac=(-2)sq. -4×1×k

=4-4k

b(sq.)-4ac=0

4-4k =0

4=4k

4/4=k

1=k

k=1

:. the value of k=1