1)根号40/根号98
1)根号40/根号98
2)根号20-1/根号5
3)根号2x^3/根号8x
2)根号20-1/根号5
3)根号2x^3/根号8x
数学人气:268 ℃时间:2020-05-31 11:13:07
优质解答
1)根号40/根号98 =根号(40/98)=根号(10/49)=(根号10)/72)根号20-1/根号5 =2*根号5-(根号5)/5=(9/5)*根号53)根号2x^3/根号8x这题貌似有歧义做两种解:(根号(2x)^3)/(根号8x)=根号((8x^3)/x)=根号(x^2)=x根号2*x^3/...
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