更新1:
Sorry charmaine_csm, your answer is wrong.
F.4 Functions
回答 (1)
2010-01-01 3:12 am
✔ 最佳答案
When f(x+1/x) = f(10)x + 1/x = 10
x^2 + 2x(1/x) + 1/x^2 = 100
x^2 + 1/x^2 = 100 - 2 = 98
f(10) = 98
收錄日期: 2021-04-21 22:09:56
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091231000051KK01437