Question 42

Which of the following numbers is irrational?

Solution

$$ \sqrt[3]{64} = 4$$(It is not an irrational number)

$$ \sqrt{64} = 8$$(It is not an irrational number)

$$ \sqrt[6]{64} = 2 $$(It is not an irrational number)

$$ \sqrt[4]{64}$$ is an irrational number

Hence, option D is the correct answer.

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