1 |
2 |
2 |
3 |
2 |
2 |
2 |
ex+x |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
3 |
2 |
3 |
2 |
3 |
2 |
A.a≥3 | B.a=3 | C.a≤3 | D.0<a<3 |
A.f(c)•g(a)≥f(a)•g(c) | B.f(a)•g(a)≥f(b)•g(b) |
C.f(b)•g(a)≥f(a)•g(b) | D.f(c)•g(b)≥f(b)•g(c) |
1 |
2 |
x2+2kx+k |
x |
ln2 |
22 |
ln3 |
32 |
lnn |
n2 |
2n2-n-1 |
4(n+1) |
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