The condition for number of roots to be real for quadratic equation $D < 0$

True

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False

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Solution

The correct option is B False
For real roots, D>=0.

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Similar questions

x^{2} + b x + c = 0

b x^{2} + c x + a = 0

a x^{2} + b x + c = 0

One or more options can be correct:

The condition for the roots of the quadratic equation f(x)= a $x^{2}$ +bx+c to be less than a real value x₀ is/are

a f (k) < 0

k

f (x) = 0

f (x) = a x^{2} + b x + c

f (k_{1}) f (k_{2}) < 0

k_{1}

k_{2}

a (a + b + c) < 0 < c (a + b + c)

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