Classify the following numbers as rational or irrational with jus… - Vidyadip

Question

Classify the following numbers as rational or irrational with justification: $\sqrt[3]{18}$

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Answer

$\sqrt[3]{18}=\sqrt[3]{(3)^2\times2}=3\times3\sqrt{2}=9\sqrt{2}$ Hence, it is an irrational number.

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