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  • Brainly User
2014-07-11T18:53:27+05:30
It means the number by which if we multiplied the polynomial then the denominator will become rational usually it is conjugate of denominator

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if helped mark as the best
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2014-07-11T19:41:10+05:30
 Rationalising mean multipling the numerator and the denominator by a suitable factor to make the denominator free from square roots such as sqrt{x}.
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