What are the rationalising factor of following irrational numbers?
(a) 2 + √3 (b) √7 (c) √50
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Surds are irrational numbers but if multiply a surd with a suitable factor, result of multiplication will be rational number. This is the basic principle involved in rationalization of surds. The factor of multiplication by which rationalization is done, is called as rationalizing factor.
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