计算:(1)根号8+根号8分之1 (2)根号0.2-根号5 化简:(3)3根号2X-5根号8X (4)根号X+根号X三次方 (5)2分之1根号ab-根号ab计算:6根号3减根号0.12 根号24+(3根号6分之1减根号2又2
来源:学生作业帮助网 编辑:作业帮 时间:2024/06/29 00:42:36
![计算:(1)根号8+根号8分之1 (2)根号0.2-根号5 化简:(3)3根号2X-5根号8X (4)根号X+根号X三次方 (5)2分之1根号ab-根号ab计算:6根号3减根号0.12 根号24+(3根号6分之1减根号2又2](/uploads/image/z/660565-37-5.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A%EF%BC%881%EF%BC%89%E6%A0%B9%E5%8F%B78%EF%BC%8B%E6%A0%B9%E5%8F%B78%E5%88%86%E4%B9%8B1+%EF%BC%882%EF%BC%89%E6%A0%B9%E5%8F%B70.2%EF%BC%8D%E6%A0%B9%E5%8F%B75+%E5%8C%96%E7%AE%80%EF%BC%9A%EF%BC%883%EF%BC%893%E6%A0%B9%E5%8F%B72X%EF%BC%8D5%E6%A0%B9%E5%8F%B78X+%EF%BC%884%EF%BC%89%E6%A0%B9%E5%8F%B7X%EF%BC%8B%E6%A0%B9%E5%8F%B7X%E4%B8%89%E6%AC%A1%E6%96%B9+%EF%BC%885%EF%BC%892%E5%88%86%E4%B9%8B1%E6%A0%B9%E5%8F%B7ab%EF%BC%8D%E6%A0%B9%E5%8F%B7ab%E8%AE%A1%E7%AE%97%EF%BC%9A6%E6%A0%B9%E5%8F%B73%E5%87%8F%E6%A0%B9%E5%8F%B70.12+%E6%A0%B9%E5%8F%B724%EF%BC%8B%EF%BC%883%E6%A0%B9%E5%8F%B76%E5%88%86%E4%B9%8B1%E5%87%8F%E6%A0%B9%E5%8F%B72%E5%8F%882)
计算:(1)根号8+根号8分之1 (2)根号0.2-根号5 化简:(3)3根号2X-5根号8X (4)根号X+根号X三次方 (5)2分之1根号ab-根号ab计算:6根号3减根号0.12 根号24+(3根号6分之1减根号2又2
计算:(1)根号8+根号8分之1 (2)根号0.2-根号5 化简:(3)3根号2X-5根号8X (4)根号X+根号X三次方 (5)2分之1根号ab-根号ab
计算:6根号3减根号0.12
根号24+(3根号6分之1减根号2又2分之3)
根号20减(2根号0.2减根号3又5分之1)
根号48减4根号3分之1)减(3根号3分之1减4根号0.5)
计算:(1)根号8+根号8分之1 (2)根号0.2-根号5 化简:(3)3根号2X-5根号8X (4)根号X+根号X三次方 (5)2分之1根号ab-根号ab计算:6根号3减根号0.12 根号24+(3根号6分之1减根号2又2
(1)根号8+根号8分之1 =2根号2+1/(2根号2)=2根号2+(根号2)/4=1又1/4(根号2)
(2)根号0.2-根号5=1/根号5-根号5=根号5/5-根号5=-4/5(根号5)
(3)3根号2X-5根号8X =3根号(2x)-10根号(2x)=-7根号(2x)
(4)根号X+根号X三次方 =根号x+x根号x=(1+x)根号x
(5)2分之1根号ab-根号ab=-1/2根号(ab)
6根号3减根号0.12 =6根号3-0.2根号3=5又4/5(根号3)
根号24+(3根号6分之1减根号2又2分之3)=2根号6+(3*1/6根号6-1/3)根号24
=2根号6+(1/2根号6-2/3根号6)=2根号6-1/36号6=1又5/6根号6
根号20减(2根号0.2减根号3又5分之1)=2根号5-[2*1/5根号5-根号(16/5)]
=2根号5-[2/5根号5-4/5根号5]=2根号5+2/5根号5=2有2/5根号5
根号48减4根号3分之1)减(3根号3分之1减4根号0.5)
=(4根号3-4/3根号3)-(3*1/3根号3-4*1/2根号2)
=2又2/3根号3-根号3+2根号2
=1又2/3根号3+2根号2
(1)根号8+根号8分之1=2又4分之1根号2
(2)根号0.2-根号5=-5分之4根号5
(3)3根号2X-5根号8X=-7根号2X
(4)根号X+根号X三次方=(1+x)根号X
(5)2分之1根号ab-根号ab=-2分之1根号ab