If the product of two surds is rational, then each of the surds is called a rationalising factor of the other. In general, if the surd is of type then its rationalising surd is a .
The rationalising factor of a surd is of a surd is not unique but it is always convenient to use simplest of all rationalising factors.
e.g.,
can be rationalised as follows:
Illustration . The expression equals to.
A. B. C. D.
Solution:
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My experience was very good with Abhyas academy. I am studying here from 6th class and I am satisfied by its results in my life. I improved a lot here ahead of school syllabus.
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It was a good experience with Abhyas Academy. I even faced problems in starting but slowly and steadily overcomed. Especially reasoning classes helped me a lot.
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