If a root of the equation ax^2+bx+c=0 be reciprocal of a root of the equation a'x^2+b'x+c'=0, then

JEE Main Mathematics question

If a root of the equation be reciprocal of a root of the equation , then

Answer: (A)

If is a root of the first equation then is a root of the second, so also satisfies . Two quadratics and have a common root iff

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Question ID VK-013713