设a,b,c∈R+,利用柯西不等式证明:(a/b+b/c+c/a)(b/a+c/b+a/c)≥9
题目
设a,b,c∈R+,利用柯西不等式证明:(a/b+b/c+c/a)(b/a+c/b+a/c)≥9
答案
m=根号a/b n=根号b/c l=根号c/a k=根号b/a p=根号c/b q=根号a/c,然后(m2+n2+l2)(k2+p2+q2)>=(mk+np+lq)2=9
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
最新试题
- GYTA-40B,GYTA-18B4光缆规格表示的意义
- I prefer to walk there ( ) by bus.( )内应填什么
- How can you convince him_____ the death of his wife,since he was with her a few minutes ago?
- 86乘以84/85等于多少?
- 请写出下列词组的汉语意思,recordcard,bankcard,entrycard,phonecard,postcard,expensecard
- I guess it is an illness to miss somebody,翻译
- “她在舞蹈”用英文怎么写
- 城市有一条河,乡间也有一条河,你说,乡间的河急还是城市的河急,
- Look,the dog is beautiful.And it is clever是什么意思
- log2^(1/2)等于多少
热门考点