皮皮学，免费搜题
登录
搜题
【简答题】
已知函数 f(x)=2sinx[1-cos( π 2 +x)]+2co s 2 x-1 （1）设ω＞0为常数，若函数y=f（ωx）在区间 [- π 2 ， 2 3 π] 上是增函数，求ω的取值范围； （2）设集合 A={x| π 6 ≤x≤ 2 3 π} ，B=x||f（x）-m|＜2，若A∪B=B，求实数m的取值范围．
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】这项建议在会上一宣布,她就站起来提出异议。 No sooner had the proposal been announced at the meeting _____ she got to her feet to _______.
【简答题】No sooner had the proposal _______ at the meeting than she _______ to protest.这项建议在会上一宣布,她就站起来提出异议。(feet)
【单选题】听力原文： Good afternoon and thank you for tuning in. We just got confirmation that there will be a concert here featuring The Style. Project from England. They are currently the number one band in North ...
A.
A top-ten list
B.
A new movie
C.
A music concert
D.
A popular television show
【单选题】Which statement is true when you run the SQL Tuning Advisor with limited scope？（）
A.
Access path analysis is not performed for the SQL statements.
B.
SQL structure analysis is not performed for the SQL statements.
C.
SQL Profile recommendations are not generated for the SQL statements.
D.
The staleness and absence of the statistics are not checked for the objects in the query supplied to the SQL Tuning Advisor.
【简答题】There are many things people do with their spare time.Have you ever thought about tuning(调音)your own piano for fun and profit？Are you a piano teacher or player who really does not want the expense of ...
【简答题】这项建议在会上一宣布,她就站起来提出异议。 No sooner the proposal at the meeting than she her feet to .
【单选题】听力原文：W: This is 20 hours Greenwich meantime. I'm Carol. Thank you for tuning in for this hour's interview with Mr. Steve McCrery, the photojournalist for National Geographic. Good evening, Steve. Than...
A.
A magazine he has been working for.
B.
A place the photo journalist has been to.
C.
A series of pictures he has taken.
D.
A book he has written.
【单选题】在一定条件下，可逆反应达到化学平衡时，下列说法中正确的是
A.
单位时间内反应物减少的分子数等于生成物增加的分子数
B.
反应物的浓度一定等于生成物的浓度
C.
混合物中各组分的质量分数是一定的
D.
反应物和生成物的浓度比一定等于化学方程式的系数比
【单选题】这项建议在会上一宣布,她就站起来提出异议。
A.
As soon as the proposal was announced at the meeting, than she stood up to protest.
B.
No sooner had the proposal been announced at the meeting than she got to her feet to protest.
相关题目：
参考解析：
知识点：
题目纠错 0
发布
