发表评论-gugeren-万维博客-万维读者网（电脑版）

设万维读者为首页

万维读者网 -- 全球华人的精神家园

广告服务

联系我们

关于万维

首　页

新　闻

视　频

博　客

论　坛

分类广告

购　物


gugeren的博客
有则写之，无则空之
	https://blog.creaders.net/u/5804/ > 复制 > 收藏本页

我的名片

gugeren

注册日期: 2012-01-06
访问总量: 3,063,062 次

· 【中国观察】马斯克计划推出免费

· 【美国时事通】当被捕杀者成为猎

· 【RRN】白帽逮捕一宾夕法尼亚州

· 【RRN】军方将清洗叛国军官

· 【RRN】FBI局长Wray被控叛国罪但

· 【美国时事通】川普胜选后，她要

· 【RRN】海军陆战队逮捕马约卡斯

【DIY】

【数学】

【美国大学申请】

· 美国劳工部对2010-2020年劳动力

【杂记】

【股票+金融】

【自己文章】

【转贴好文章】

· 【RRN】FBI局长Wray被控叛国罪但

11/01/2024 - 11/30/2024

10/01/2024 - 10/31/2024

09/01/2024 - 09/30/2024

08/01/2024 - 08/31/2024

07/01/2024 - 07/31/2024

06/01/2024 - 06/30/2024

05/01/2024 - 05/31/2024

04/01/2024 - 04/30/2024

03/01/2024 - 03/31/2024

02/01/2024 - 02/29/2024

01/01/2024 - 01/31/2024

12/01/2023 - 12/31/2023

11/01/2023 - 11/30/2023

10/01/2023 - 10/31/2023

09/01/2023 - 09/30/2023

08/01/2023 - 08/31/2023

07/01/2023 - 07/31/2023

06/01/2023 - 06/30/2023

05/01/2023 - 05/31/2023

04/01/2023 - 04/30/2023

03/01/2023 - 03/31/2023

02/01/2023 - 02/28/2023

01/01/2023 - 01/31/2023

12/01/2022 - 12/31/2022

11/01/2022 - 11/30/2022

10/01/2022 - 10/31/2022

09/01/2022 - 09/30/2022

08/01/2022 - 08/31/2022

07/01/2022 - 07/31/2022

06/01/2022 - 06/30/2022

05/01/2022 - 05/31/2022

04/01/2022 - 04/30/2022

03/01/2022 - 03/31/2022

02/01/2022 - 02/28/2022

01/01/2022 - 01/31/2022

12/01/2021 - 12/31/2021

11/01/2021 - 11/30/2021

10/01/2021 - 10/31/2021

09/01/2021 - 09/30/2021

08/01/2021 - 08/31/2021

07/01/2021 - 07/31/2021

06/01/2021 - 06/30/2021

05/01/2021 - 05/31/2021

04/01/2021 - 04/30/2021

03/01/2021 - 03/31/2021

02/01/2021 - 02/28/2021

01/01/2021 - 01/31/2021

12/01/2020 - 12/31/2020

11/01/2020 - 11/30/2020

10/01/2020 - 10/31/2020

09/01/2020 - 09/30/2020

08/01/2020 - 08/31/2020

07/01/2020 - 07/31/2020

06/01/2020 - 06/30/2020

05/01/2020 - 05/31/2020

04/01/2020 - 04/30/2020

03/01/2020 - 03/31/2020

02/01/2020 - 02/29/2020

01/01/2020 - 01/31/2020

12/01/2019 - 12/31/2019

11/01/2019 - 11/30/2019

10/01/2019 - 10/31/2019

09/01/2019 - 09/30/2019

08/01/2019 - 08/31/2019

07/01/2019 - 07/31/2019

06/01/2019 - 06/30/2019

05/01/2019 - 05/31/2019

04/01/2019 - 04/30/2019

03/01/2019 - 03/31/2019

02/01/2019 - 02/28/2019

01/01/2019 - 01/31/2019

11/01/2018 - 11/30/2018

08/01/2018 - 08/31/2018

07/01/2018 - 07/31/2018

06/01/2018 - 06/30/2018

05/01/2018 - 05/31/2018

04/01/2018 - 04/30/2018

03/01/2018 - 03/31/2018

02/01/2018 - 02/28/2018

01/01/2018 - 01/31/2018

12/01/2017 - 12/31/2017

11/01/2017 - 11/30/2017

10/01/2017 - 10/31/2017

07/01/2017 - 07/31/2017

06/01/2017 - 06/30/2017

05/01/2017 - 05/31/2017

04/01/2017 - 04/30/2017

03/01/2017 - 03/31/2017

02/01/2017 - 02/28/2017

01/01/2017 - 01/31/2017

12/01/2016 - 12/31/2016

11/01/2016 - 11/30/2016

10/01/2016 - 10/31/2016

09/01/2016 - 09/30/2016

08/01/2016 - 08/31/2016

06/01/2016 - 06/30/2016

05/01/2016 - 05/31/2016

04/01/2016 - 04/30/2016

03/01/2016 - 03/31/2016

02/01/2016 - 02/29/2016

01/01/2016 - 01/31/2016

12/01/2015 - 12/31/2015

11/01/2015 - 11/30/2015

10/01/2015 - 10/31/2015

09/01/2015 - 09/30/2015

08/01/2015 - 08/31/2015

07/01/2015 - 07/31/2015

06/01/2015 - 06/30/2015

05/01/2015 - 05/31/2015

03/01/2015 - 03/31/2015

12/01/2014 - 12/31/2014

06/01/2014 - 06/30/2014

05/01/2014 - 05/31/2014

03/01/2014 - 03/31/2014

02/01/2014 - 02/28/2014

12/01/2013 - 12/31/2013

11/01/2013 - 11/30/2013

10/01/2013 - 10/31/2013

08/01/2013 - 08/31/2013

07/01/2013 - 07/31/2013

06/01/2013 - 06/30/2013

04/01/2013 - 04/30/2013

03/01/2013 - 03/31/2013

02/01/2013 - 02/28/2013

01/01/2013 - 01/31/2013

12/01/2012 - 12/31/2012

10/01/2012 - 10/31/2012

09/01/2012 - 09/30/2012

07/01/2012 - 07/31/2012

06/01/2012 - 06/30/2012

05/01/2012 - 05/31/2012

04/01/2012 - 04/30/2012

03/01/2012 - 03/31/2012

02/01/2012 - 02/29/2012

01/01/2012 - 01/31/2012

发表评论

敬告：您的浏览器已关闭活动脚本，开启后才可正常使用！

作者：

用户名：

密码：

您还不是博客/论坛用户？现在就注册！

评论：

趣味的数学-468

ΔABC中的内切圆的圆心【即三个角的角平分线的交点，通称内心】是I，它的BC边、AC边和AB边的三条中线的长度分别是m1、m2和m3。

证明：

(IA/m1)^2 + (IB/m2)^2 + (IC/m3)^2 ≤ 3/4