December 8, 2022

Cardinality of a set and practical problems based on sets

Cardinality  of a set : cardinality of a set, which is basically the size of the set. The cardinality of a set is denoted by .  For finite sets , cardinality is  simply the number of  distinct elements in . For example, if, then =5. Important  results on numbers of elements …

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Finding rational numbers between two given rational numbers

Rational numbers between two given rational numbers A rational number is a number which can be written in the form of . We can find  infinitely many rational numbers between any two rational numbers. This property of rational numbers is known as the dense property. Methods to  find  rational numbers …

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