If a,b,c are positive real numbers, then...

If a,b,c are positive real numbers, then the number of positive real roots of the equation `ax^(2)+bx+c=0` is

A

are real and are in ratio b : ac

B

are real

C

are imaginary and are in ratio `1 : omega`, where `omega` is a complex cube root of unity

D

are imaginary and are in ratio `-1 : omega`

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The correct Answer is:

C

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