根号下72+根号下18-2分之3倍根号2=多少

2024-12-18 05:01:10
推荐回答(2个)
回答1:

解析

√72-√18-3√2/2
=6√2-3√2-3√2/2
=3√2-3√2/2
=3√2/2

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回答2:

√72+√18-3√2/2
=6√2+3√2-3√2/2
=6√2+3√2/2
=15√2/2