JEE MATHEMATICS MCQ: QUADRATIC EQUATIONS

1 Easy

1 of 1

Application +4 | -1

r

be the ratio of the roots of the equation

a x^2+b x+c=0

, then

\frac{(r+1)^2}{r}=

View answer and explanation

Correct option: B

\frac{b^2}{c a}

Option B (

\frac{b^2}{c a}

) is correct because it is derived from the relationship between the roots and coefficients of the quadratic equation.

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{x^2} - px + q = 0

{\alpha _1},{\beta _1}

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{x^2} + 4ax + 2 > 0

x

a

f\left( x \right) = a{x^2} + bx + c\;

\;f\left( { - 1} \right) < 1,f\left( 1 \right) > - 1,f\left( 3 \right) < - 4\;

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9{x^2} - 18\left| x \right| + 5 = 0

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