Hi! I've tried to solve this question, but I came to the conclusion that I couldn't so I gave up! I hope you can help me with this one :)
The equation x^2 - 2kx + 1 = 0 has two distinct real roots. Find the set of all possible values of k.
I would appreciate your help :)
The discriminant is
The equation has two distinct real roots if
Can you go on ?
Does the final answer give 1/2(x + 1/x)?
Originally Posted by Aminekhadir
Don't forget you are asked to find a set of values of k
Ok, I will try to figure it out :)
Thanks for the help!