A.f(1)<ef(0),f(2013)>e2013f(0) | B.f(1)>ef(0),f(2013)>e2013f(0) |
C.f(1)>ef(0),f(2013)<e2013f(0) | D.f(1)<ef(0),f(2013)<e2013f(0) |
f(x) |
ex |
exf′(x)-exf(x) |
(ex)2 |
f′(x)-f(x) |
ex |
f(1) |
e |
f(0) |
1 |
f(2013) |
e2013 |
f(0) |
e0 |
1 |
3 |
2t+1 |
3 |
A.必为正数 | B.必为负数 | C.必为非负 | D.必为非正 |
A.3 | B.-3 | C.4 | D.-4 |
π |
6 |
π |
3 |
A.1 | B.0 | C.
| D.
|
1nx |
x2+1 |
π |
4 |
π |
4 |
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