Classify the following number as rational and irrational. Give reasons to support your answer.
$21$ .

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Classify the following number as rational and irrational. Give reasons to support your answer.

21

6 mins ago

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6 mins ago

Text solutionVerified

As we know

21

is not a perfect square.

Therefore,

21

is irrational.

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Question Text	Classify the following number as rational and irrational. Give reasons to support your answer. $21$ .
Answer Type	Text solution:1
Upvotes	150