If a, b, c are in GP, then the equations ax^2 + 2bx + c = 0… — JEE Main 1985 Mathematics PYQ

1985

a, b, c

are in GP, then the equations

ax^2 + 2bx + c = 0

and

dx^2 + 2ex + f = 0

have a common root, if

\dfrac{d}{a}, \dfrac{e}{b}, \dfrac{f}{c}

are in

Show answer

Correct option: A

[1985]

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JEE Main 1985 Mathematics question on Sequences and Series