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1. For all the values of k,prove that the roots of the equation
X^2--2(k+1/k)X+3=0, K#0 are real.
Can anyone solve this plz?
2. b^2-4ac=0

where,
b= 2(k+1/k)
c= 3
a=1
3. (Original post by UziGun)
b^2-4ac=0

where,
b= 2(k+1/k)
c= 3
a=1
This is what I know but can you show me how it proved the question? Thanks
4. (Original post by Nasir Malik)
This is what I know but can you show me how it proved the question? Thanks
This reduces to proving that is non-negative. Please post some working and you'll get help.

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