题目内容
设f(x)=
,那么f(
)+f(
)+f(
)+…+f(
)的值等于______.
4x |
4x+2 |
1 |
100 |
2 |
100 |
3 |
100 |
99 |
100 |
∵f(x)=
,
∴f(x)+f(1-x)=
+
=
+
=
+
=
=1.
∴f(
)+f(
)+f(
)+…+f(
)=55(f(
)+f(
))=55.
故答案为:55.
4x |
4x+2 |
∴f(x)+f(1-x)=
4x |
4x+2 |
41-x |
41-x+2 |
4x |
4x+2 |
4 |
4+2•4x |
4x |
4x+2 |
2 |
2+4x |
4x+2 |
4x+2 |
∴f(
1 |
100 |
2 |
100 |
3 |
100 |
99 |
100 |
1 |
100 |
99 |
100 |
故答案为:55.
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