1 |
n |
1 |
m |
f(m) |
f(n) |
n |
m |
1 |
m |
1 |
m |
1 |
n |
f(m) |
f(n) |
n |
m |
2 |
a |
2 |
a |
4 |
a |
2 |
a |
-2±
| ||
a |
-2+
| ||
a |
-2 | ||
2+
|
4 |
a |
2 |
a |
-2±
| ||
a |
-2-
| ||
a |
-6 | ||
|
1 |
2 |
1 |
2 |
1 |
2 |
A.(
| B.[
| C.(
| D.[
|
| ||
|x+3|-3 |
A.奇函数 |
B.偶函数 |
C.既不是奇函数也不是偶函数 |
D.既是奇函数也是偶函数 |
3 | x |
A.x(x+
| B.-x(x+
| C.-x(x-
| D.x(x-
|
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