1 |
2n |
1 |
2n |
1 |
2n |
1 |
2n-1 |
1 |
2n |
1 |
2n |
1 |
2 |
1 |
2n-1 |
1 |
2n |
1 |
2 |
1 |
2n-1 |
1 |
22 |
1 |
2n-2 |
1 |
2n |
1 |
20 |
1 |
2n |
1 |
2n |
1 |
2n |
1 |
20 |
1 |
20 |
1 |
2n |
1 |
2n |
x1 |
x2 |
-3+4x-x2 |
|
A.10 | B.9 | C.12 | D.13 |
|
A.0 | B.π | C.π2 | D.9 |
A.是偶函数,在区间(-∞,0)上单调递增 |
B.是偶函数,在区间(-∞,0)上单调递减 |
C.是奇函数,在区间(0,+∞)上单调递增 |
D.是奇函数,在区间(0,+∞)上单调递减 |
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