>
数学
>
求值 (1/根号2+1)+(1/根号3+根号2)+(1/2+根号3)+……+(1/3+根号8)
人气:428 ℃ 时间:2020-03-27 21:27:16
解答
(1/根号2+1)+(1/根号3+根号2)+(1/2+根号3)+……+(1/3+根号8)
=(√2-1)+(√3-√2)+√4-√3+.√9-√8
=-1+√9
=2
推荐
先化简再求值(根号3-根号2)^2-根号2*(根号8-3根号3)
先化简,在求值:3(a+1)^2-(a+1)(2a-1),其中a=-根号3
求值:根号4分之1*根号16-根号9分之1*3-根号0+(根号3-2)^0
先化简再求值,a-2/a-4除以【a+(4/a-4)】其中a=根号3+2
先化简再求值:(x-2-5/x+2)÷(x-3/2x+4)【其中x=根号2-3】
Go ()along the road.The bus stop is at the end of it.
什么是二倍角、什么是log
设定义在[-2.2]上的偶函数f(x)在区间[0.2]上单调递减,若f(1-m)
猜你喜欢
不等式x^2+mx+m/2>0对任意实数x恒成立,则实数a的取值范围是?
THe invention of internet helped bring into popular usage___a wide range of new words
大小两圆的直径比是3:2,小圆周长比大圆周长的1/2还多4.71厘米,求大圆半径和小圆面积
Will it b______ you if I turn on the radio该怎么写呢
(5m十1)的平方减(5m十1)乘(5m-1)
一道高一三角函数恒等变换题
lend me it 还是lend it to me
lt is six thirty in the morning.Ron m_____ get up.He puts up his clothes,but can't f_____ his shoes.He put them under th
© 2025 79432.Com All Rights Reserved.
电脑版
|
手机版