1 |
2 |
3 |
x |
3 |
x |
2 |
x |
3 |
x2 |
(x+3)(x-1) |
x2 |
1 |
2 |
1 |
2 |
-x(x+1)(x-1) |
x2+1 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
f(m+1)-f(n+1) |
m-n |
sinπx |
(x2+1)(x2-2x+2) |
A.y=2|x| | B.y=lg(x+
| C.y=2x+2-x | D.y=lg
|
A.f(b-2)=f(a+1) | B.f(b-2)>f(a+1) | C.f(b-2)<f(a+1) | D.不能确定 |
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