Question

If the quadratic equation x² - kx + 1 =0 has no real root, then value of 'k' is-​

Answer 1

Answer:

k<+(or)-2

Step-by-step explanation:

By using discriminant

b2-4ac<0

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

(-k)2-4(1)(1)<0

k2-4<0

k2<4

k<√4

k<+(or)-2

I hope this answer may help you