π |
4 |
3 |
π |
6 |
π |
4 |
3 |
π |
2 |
3 |
3 |
π |
3 |
2π |
2 |
π |
2 |
π |
3 |
π |
2 |
5π |
12 |
π |
12 |
5π |
12 |
π |
12 |
π |
6 |
π |
3 |
π |
3 |
2π |
3 |
π |
3 |
| ||
2 |
3 |
π |
6 |
3 |
π |
6 |
3 |
3 |
3 |
1+x2 |
1-x2 |
1 |
x |
1 |
5 |
1 |
4 |
1 |
3 |
1 |
2 |
A.y=x
| B.y=(
| C.y=lnx | D.y=-x2+1 |
A.是奇函数 |
B.既是奇函数,又是偶函数 |
C.是偶函数 |
D.既不是奇函数,又不是偶函数 |
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