皮皮学，免费搜题
登录
搜题
【简答题】
已知 cosα=- 12 13 ，cos(α+β)= 17 2 26 ，且 α∈(π， 3π 2 )，α+β∈( 3π 2 ，2π) ，求β．
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】The woman put on a big hat, hoping that no one could ____her.
【单选题】It could be inferred from the text that members of the Red Hat Society are ______.
A.
interested in raising money for social work
B.
programmers who can plan well for their future
C.
believers in equality between men and women
D.
good at cooking big meals and taking care of others
【简答题】It could be inferred from the text that members of the Red Hat Society are _________.
【单选题】No one could tell how the magician was able to produce a rabbit from his hat until he ______his tricks.
A.
strayed away from
B.
threw light on
C.
gave birth to
D.
fell back on
【单选题】I don't like the color of this hat. _____ you show me another one, please? [ ]
A.
Could
B.
Need
C.
Must
D.
Should
【单选题】_______ second hat doesn't fit me, either. Could I look at _______ third one?
A.
A; a
B.
The; the
C.
A; the
D.
The; a
相关题目：
参考解析：
知识点：
题目纠错 0
发布
