有几道数学计算题,要完整的过程. (1)√6×√3/√2 (2) √12-√3/√3-1
有几道数学计算题,要完整的过程. (1)√6×√3/√2 (2) √12-√3/√3-1
(3)(√2-√3)²+(2√2+1)(2√2-1) (4)5√2+√8-7√18
(3)(√2-√3)²+(2√2+1)(2√2-1) (4)5√2+√8-7√18
数学人气:130 ℃时间:2019-10-23 09:05:32
优质解答
(1)√6×√3/√2=√18/√2=3√2/√2=3 (2) √12-√3/√3-1 =2√3-(3√3/3)-1=6√3/3-(3√3/3)-1=√3-1 (3)(√2-√3)²+(2√2+1)(2√2-1) =(2+3-2√6)+(8-1)=5-2√6+7=12-2√6(4)5√2+√8-7√18=5√2+2...
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