θ |
2 |
3 |
5 |
θ |
2 |
4 |
5 |
A.第一象限 | B.第二象限 | C.第三象限 | D.第四象限 |
θ |
2 |
3 |
5 |
θ |
2 |
4 |
5 |
θ |
2 |
θ |
2 |
24 |
25 |
θ |
2 |
7 |
25 |
π |
6 |
x |
2 |
A.4π | B.2π | C.
| D.
|
A.奇函数且在[0,
| ||
B.奇函数且在[
| ||
C.偶函数且在[0,
| ||
D.偶函数且在[
|
2 |
3 |
2 |
3 |
π |
6 |
A.
| B.2π | C.
| D.3π |
|
A.函数f(x)的值域是[-1,1] | ||
B.当且仅当x=2kπ+
| ||
C.函数f(x)是以2π为最小正周期的周期函数 | ||
D.当且仅当2kπ+π<x<2kπ+
|
© 2017-2019 超级试练试题库,All Rights Reserved.