Question

If x is a positive real number and x² = 2, then x³ =
A.
B. 2
C. 3
D. 4

Answer 1

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Given, ${x}^{2}={2}$

=> ${x}=\sqrt{2}$

Now,

${x}^{3}=({\sqrt{2}})^{3}={2\sqrt{2}}$

This is the best possible answer

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