(2@6)@4
=(√12+4)@4
=4@4
=√20
=2√5
定义运算:@的运算法则为x@y=√xy+4,求(2@6)@4的值
定义运算:@的运算法则为x@y=√xy+4,求(2@6)@4的值
数学人气:386 ℃时间:2019-10-10 05:40:29
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