x |
A.x-2y=0 | B.x-y-2=0 | C.x-4y+4=0 | D.x+4y-4=0 |
x |
x |
1 |
2 |
1 |
2 |
1 |
4 |
1 |
4 |
3 |
2 |
1 |
2 |
lim |
h→0 |
f(x0+h)-f(x0-h) |
h |
A.f′(x0) | B.2f′(x0) | C.-2f′(x0) | D.0 |
π |
3 |
A.y-
| B.y-
| ||||||||||||||||
C.y-
| D.y-
|
1 |
3 |
3a |
2 |
A.(-1,0)∪(0,1) | B.(-2,0)∪(0,1) | C.(-2,1) | D.(-1,
|
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