please help.?
回答 (3)
2016-06-17 6:35 pm
✔ 最佳答案
f(x) = 2xf(f(x)) = x + 1
f(2x) = x + 1
2(2x) = x + 1
4x = x + 1
3x = 1
x = 1/3
2016-06-17 7:41 pm
4x = x + 1
3x = 1
x = 1/3
3x = 1
x = 1/3
2016-06-17 6:35 pm
1
收錄日期: 2021-04-18 15:05:55
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160617102834AAAFfSC