解決4/sqrt{2} |Microsoft數學求解器

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\frac{4\sqrt{2}}{\left(\sqrt{2}\right)^{2}}

將分子和分母同時乘以 \sqrt{2}，來有理化 \frac{4}{\sqrt{2}} 的分母。

\frac{4\sqrt{2}}{2}

\sqrt{2} 的平方是 2。

2\sqrt{2}

將 4\sqrt{2} 除以 2 以得到 2\sqrt{2}。

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