(1)1/5根号900+1/2根号121
=(1/5)*30 + (1/2)*11
=6+ 5.5
=11.5
(2)根号12+根号1/27-根号1/3(3)根号1/7+根号28-根号700
=2根号3 + (根号3)/9 - (根号3)/3
=(2 + 1/9 - 1/3)*根号3
=16(根号3)/9
(4)根号32-3根号1/2+根号8
=4根号2 - 3(根号2)/2 + 2根号2
=9(根号2)/2
计算:(1)1/5根号900+1/2根号121(2)根号12+根号1/27-根号1/3(3)根号1/7+根号28-根号700
计算:(1)1/5根号900+1/2根号121(2)根号12+根号1/27-根号1/3(3)根号1/7+根号28-根号700
(4)根号32-3根号1/2+根号8
(4)根号32-3根号1/2+根号8
数学人气:872 ℃时间:2019-09-20 00:53:41
优质解答
我来回答
类似推荐
猜你喜欢
- 11.将一个圆形纸片划分成大小不限的若干小纸片,如果要分成不少于50个小纸片,至少要划多少条直
- 2已知定义域为R的函数fx=b-2x/2^x+1+a是奇函数 求a+b
- 31nm等于多少千米·~dm `cm `mm
- 4望岳体现的哲理
- 5I watch TV news ( )about half an hour every night.
- 6八分之七减七分之四加八分之三等于多少
- 7什么的苹果 填形容词
- 8Could you give me ___second chance ,please?A an B the C a
- 9will you give Jane this letter if you -------(happen)to see her next week.(用正确形式填空)
- 10若定义在R上的函数f(x)满足对任意两个实数x1,x2有f(x1+x2)=f(x1)+f(x2)+1,则正确的是