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Number of Elements in a Cartesian Product

State true or...

Question

State true or false:

(vii) The set of letters in your mathematics book is an infinite set.

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Solution

Step : State true or false

A set is said to be infinite set, if it has a uncountable number of elements in it.

Since letters in mathematics books are countable.

$∴$ Set of letters in your mathematics book is a finite set.

Hence, the given statement is false.

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Number of Elements in a Cartesian Product

Standard XII Mathematics

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