已知y=根号x-1+根号1-x+2分之1计算2y-3的绝对值+x的值
人气:185 ℃ 时间:2019-10-23 03:48:13
解答
y=根号x-1+根号1-x+2分之1
x-1≥0
1-x≥0
∴x=1
此时y=1/2
│2y-3│+x
=│1-3│+1
=3
推荐
猜你喜欢
- 合并同类项:2a的平方-3ab+b的平方-a的平方+ab-2b的平方
- 若三点A(2,2),B(a,0),C(0,b)(ab不等于0)共线,则1/a+1/b的值等于多少?
- 甲.乙两个人加工零件,甲平均每分钟加工0.8个,乙平均每分钟加工9分之7个,谁的工作效率高
- Do not say forever,because forever does not
- 当前生物科技的发展情况
- It's such nice weather that we can go out
- If he had only had enough money,he would have bought that house.第一个only是什么意思?
- This is a photo of my family