JEE MATHEMATICS MCQ: QUADRATIC EQUATIONS

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Application +4 | -1

If the roots of the equation

\left( {{p^2} + {q^2}} \right){x^2} - 2q\left( {p + r} \right)x + \left( {{q^2} + {r^2}} \right) = 0

be real and equal, then

p,\;q,\;r

will be in

View answer and explanation

Correct option: B

The correct answer is B (GP) because the condition for real and equal roots leads to the relation

q^2 = pr

, which defines a geometric progression.

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