根号2分之6减根号18减二分之一的零次方
人气：415 ℃ 时间：2019-08-20 10:01:50
解答
根号2分之6等于3倍根号2,；
根号18等于3倍根号2 ；
二分之一的零次方等于1；
所以根号2分之6减根号18减二分之一的零次方等于3倍根号2减3倍根号2减1等于-1
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