$\frac{\sqrt{2}+\sqrt{3}}{\sqrt{2}-\sqrt{3}}+\frac{\sqrt{2}-\sqrt{3}}{\sqrt{3}-\sqrt{2}}$是什么意思,有数学表达吗
时间: 2023-08-30 15:04:50 浏览: 147
matlab代码sqrt-NaiveKNN:朴素的
$\frac{\sqrt{2}+\sqrt{3}}{\sqrt{2}-\sqrt{3}}+\frac{\sqrt{2}-\sqrt{3}}{\sqrt{3}-\sqrt{2}}$ 是一个数学表达式,可以进一步化简。
首先,我们将分母有理化,即
$\frac{\sqrt{2}+\sqrt{3}}{\sqrt{2}-\sqrt{3}}+\frac{\sqrt{2}-\sqrt{3}}{\sqrt{3}-\sqrt{2}} = \frac{(\sqrt{2}+\sqrt{3})(\sqrt{2}+\sqrt{3})}{(\sqrt{2}-\sqrt{3})(\sqrt{2}+\sqrt{3})} + \frac{(\sqrt{2}-\sqrt{3})(\sqrt{2}-\sqrt{3})}{(\sqrt{3}-\sqrt{2})(\sqrt{2}-\sqrt{3})}$
化简后得到:
$\frac{\sqrt{2}+\sqrt{3}}{\sqrt{2}-\sqrt{3}}+\frac{\sqrt{2}-\sqrt{3}}{\sqrt{3}-\sqrt{2}} = \frac{5\sqrt{2}+7\sqrt{3}}{-1} = -5\sqrt{2}-7\sqrt{3}$
因此,$\frac{\sqrt{2}+\sqrt{3}}{\sqrt{2}-\sqrt{3}}+\frac{\sqrt{2}-\sqrt{3}}{\sqrt{3}-\sqrt{2}}$ 的值等于 $-5\sqrt{2}-7\sqrt{3}$。
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