题目
题型:单选题难度:简单来源:不详
x |
4 |
1 |
2 |
1 |
2010 |
A.
| B.
| C.
| D.
|
答案
1 |
2 |
1 |
2 |
1 |
2 |
由f(
x |
4 |
1 |
2 |
1 |
4 |
1 |
2 |
1 |
2 |
∵当0≤x1<x2≤1时,有f(x1)≤f(x2),∴当
1 |
4 |
1 |
2 |
1 |
2 |
当
1 |
2 |
3 |
4 |
1 |
4 |
1 |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
又由f(
x |
4 |
1 |
2 |
1 |
2010 |
1 |
2 |
2 |
1005 |
1 |
4 |
8 |
1005 |
1 |
8 |
32 |
1005 |
1 |
16 |
128 |
1005 |
1 |
32 |
512 |
1005 |
∵
1 |
2 |
512 |
1005 |
3 |
4 |
512 |
1005 |
1 |
2 |
1 |
2010 |
1 |
32 |
1 |
2 |
1 |
64 |
故选C
核心考点
试题【定义在R上的函数f(x)满足f(0)=0,f(x)+f(1-x)=1,f(x4)=12f(x),且当0≤x1<x2≤1时,有f(x1)≤f(x2),则f(120】;主要考察你对分段函数等知识点的理解。[详细]
举一反三
A.[-2,2] | B.[-
| C.[-2,
| D.[-2,-
|