1 |
3 |
1 |
2 |
A.a>b>c | B.b<c<a | C.c<a<b | D.b<a<c |
1 |
3 |
lg2 |
lg3 |
lg2 |
lge |
1 |
2 |
10 |
3 |
40 |
81 |
π |
2 |
A.(
| B.(0,
| C.(
| D.(0,
|
1 |
2 |
A.f′(x)+f(x)=-sinx | B.f′(x)+f(x)=-cosx |
C.f′(x)-f(x)=sinx | D.f′(x)-f(x)=cosx |
A.xex+x | B.(x+1)ex+1 | C.xex | D.(x+1)ex+x |
(x+1)2+sinx |
x2+1 |
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