Let f(x) = ax^2 + bx + c, a ≠ 0 and Δ = b^2 - 4ac. If α +… — JEE Main 2005 Mathematics PYQ · ExamHabit

ExamHabit Previous-year questions

AIEEE 2005

Let

f(x) = ax^2 + bx + c

,

a \neq 0

and

\Delta = b^2 - 4ac

. If

\alpha + \beta

,

\alpha^2 + \beta^2

and

\alpha^3 + \beta^3

are in GP, then

A.
$\Delta \neq 0$
B.
$b\Delta = 0$
C.
$c\Delta = 0$
D.
$bc \neq 0$

Show answer

Correct option: C

[AIEEE 2005]

Practise Sequences and Series the way it is asked

A timed set of real JEE Main Sequences and Series questions, graded as the exam grades. No sign-up.

Start a Sequences and Series test

More: all JEE Main Sequences and Series questions · JEE Main 2005 · Mathematics chapter list