下列运算错误的是（）．_刷题宝

题干

下列运算错误的是（）．

A： $\sqrt{2} + \sqrt{3} = \sqrt{5}$

B： $\sqrt{2} \cdot \sqrt{3} = \sqrt{6}$

C： $\sqrt{6} \div \sqrt{2} = \sqrt{3}$

D： ${(- \sqrt{2})}^{2} = 2$

上一题下一题 0.0难度选择题更新时间:2019-08-11 04:23:25

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A

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