a |
b |
a |
b |
kπ |
2 |
a |
b |
c |
a |
b |
c |
a |
b |
c |
b |
b |
0 |
a |
b |
a |
a |
b |
a |
b |
π |
2 |
nπ |
2 |
a |
b |
c |
a |
c |
a |
b |
c |
a |
b |
c |
π |
2 |
π |
2 |
b |
b |
0 |
a |
a |
b |
b |
a |
ex |
x |
ex(x+1) |
x2 |
x2 |
a2 |
y2 |
b2 |
2b2 |
a |
2π |
3 |
kπ |
2 |
2 |
13 |
π |
2 |
π |
4 |
π |
2 |
1 |
2 |
5 |
4 |
A.1个 | B.2个 | C.3个 | D.4个 |
1 |
a |
4 |
b |
A.1 | B.2 | C.3 | D.4 |
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