2 |
x |
x2+x+1 |
2 |
x |
x2+x+1 |
1 |
x2+x+1 |
4 |
3 |
4 |
3 |
A.f(2)>f(3) | B.f(2)>f(5) | C.f(3)>f(5) | D.f(3)>f(6) |
A.x3+cosx | B.-x3+cosx | C.-x3-cosx | D.x3-cosx |
A.f(x1)>f(x2) | B.f(x1)=f(x2) | C.f(x1)<f(x2) |
A.[0,2] | B.[0,1] | C.[1,2] | D.[-1,0] |
2a-3 |
a+1 |
A.a<
| B.-1<a<
| C.a>
| D.a<
|
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