Answer
a) $(\sqrt{2})^{2.2}
Work Step by Step
(a) Since $\sqrt{2}=1.414 \ldots$ and $e=2.718 \ldots$, we have
$$\sqrt 21$ we have $$a^xe$, we have $3^{2.2}>e^{2.2}$, therefore $\frac{1}{3^{2.2}}<\frac{1}{e^{2.2}}$, so $3^{-2.2}
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