a>=0,b>=0 c>=0.且a+b+c=1,证明:a/(1+a^2)+b/(b+b^2)+c/(1+c^2)我都把仅剩的10分给了...看过这题的兄弟...给个网址,或写在纸.发上图来...
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/01 06:28:59
![a>=0,b>=0 c>=0.且a+b+c=1,证明:a/(1+a^2)+b/(b+b^2)+c/(1+c^2)我都把仅剩的10分给了...看过这题的兄弟...给个网址,或写在纸.发上图来...](/uploads/image/z/1750597-61-7.jpg?t=a%3E%3D0%2Cb%3E%3D0+c%3E%3D0.%E4%B8%94a%2Bb%2Bc%3D1%2C%E8%AF%81%E6%98%8E%EF%BC%9Aa%2F%281%2Ba%5E2%29%2Bb%2F%28b%2Bb%5E2%29%2Bc%2F%281%2Bc%5E2%29%E6%88%91%E9%83%BD%E6%8A%8A%E4%BB%85%E5%89%A9%E7%9A%8410%E5%88%86%E7%BB%99%E4%BA%86%EF%BC%8E%EF%BC%8E%EF%BC%8E%E7%9C%8B%E8%BF%87%E8%BF%99%E9%A2%98%E7%9A%84%E5%85%84%E5%BC%9F%EF%BC%8E%EF%BC%8E%EF%BC%8E%E7%BB%99%E4%B8%AA%E7%BD%91%E5%9D%80%EF%BC%8C%E6%88%96%E5%86%99%E5%9C%A8%E7%BA%B8%EF%BC%8E%E5%8F%91%E4%B8%8A%E5%9B%BE%E6%9D%A5%EF%BC%8E%EF%BC%8E%EF%BC%8E)
a>=0,b>=0 c>=0.且a+b+c=1,证明:a/(1+a^2)+b/(b+b^2)+c/(1+c^2)我都把仅剩的10分给了...看过这题的兄弟...给个网址,或写在纸.发上图来...
a>=0,b>=0 c>=0.且a+b+c=1,证明:a/(1+a^2)+b/(b+b^2)+c/(1+c^2)
我都把仅剩的10分给了...
看过这题的兄弟...
给个网址,或写在纸.发上图来...
a>=0,b>=0 c>=0.且a+b+c=1,证明:a/(1+a^2)+b/(b+b^2)+c/(1+c^2)我都把仅剩的10分给了...看过这题的兄弟...给个网址,或写在纸.发上图来...
(2-x)(x^2+1)≥50/27 求导可得
x/(x^2+1)≤27(2x-x^2)/50
要证a/(1+a^2)+b/(b+b^2)+c/(1+c^2)