5 |
4 |
lgan+1+lgan+2+…+lga2n |
n2 |
|
|
1 |
8 |
1 |
2 |
1 |
2 |
1 |
2 |
lgan+1+lgan+2++lga2n |
n2 |
(n-3)lg
| ||||||
n2 |
(n-3)+(n-2)++(2n-4) |
n2 |
1 |
2 |
n[(n-3)+(2n-4)] |
2n2 |
1 |
2 |
3 |
2 |
7 |
2n |
1 |
2 |
3 |
2 |
7 |
2n |
7 |
2n |
7 |
2 |
7 |
2 |
1 |
n |
7 |
2 |
1 |
n |
7 |
2 |
1 |
n |
7 |
2 |
1 |
n |
7 |
2 |
1 |
1 |
lgan+1+lgan+2++lga2n |
n2 |
|
|
A.3a | B.
| C.a | D.
|
9 |
100 |
A.0 | B.1 | C.2 | D.3 |
1 |
2 |
1 |
2 |
1 |
2 |
A.aa>a
| B.a
| ||||||||
C.log
| D.log
|
x |
A.|a|>1 | B.|a|<2 | C.a<-
| D.1<|a|<
|
© 2017-2019 超级试练试题库,All Rights Reserved.