f(x) =x^1/3 -1/3x -2/3 for x>0
show f(x) </ = 0 for all x>0 and hence deduce for x,y>0
x^1/3y^2/3 </= 1/3x +2/3y
maths
2015-03-07 10:09 pm
回答 (1)
2015-03-08 8:10 am
收錄日期: 2021-04-15 18:41:03
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20150307000051KK00029