已知函数y=f(x)的定义域为R,且对任意a,b∈∈R都有f(a+b)=f(a)+f(b),且当x>0时f﹙x﹚<0恒成立,证明筱枫wxj | 2011-10-07证明∶函数y=f﹙x﹚是R上的减函数请问要先证明奇函数吗
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 20:40:36
![已知函数y=f(x)的定义域为R,且对任意a,b∈∈R都有f(a+b)=f(a)+f(b),且当x>0时f﹙x﹚<0恒成立,证明筱枫wxj | 2011-10-07证明∶函数y=f﹙x﹚是R上的减函数请问要先证明奇函数吗](/uploads/image/z/2999412-36-2.jpg?t=%E5%B7%B2%E7%9F%A5%E5%87%BD%E6%95%B0y%3Df%EF%BC%88x%EF%BC%89%E7%9A%84%E5%AE%9A%E4%B9%89%E5%9F%9F%E4%B8%BAR%2C%E4%B8%94%E5%AF%B9%E4%BB%BB%E6%84%8Fa%2Cb%E2%88%88%E2%88%88R%E9%83%BD%E6%9C%89f%28a%2Bb%29%3Df%28a%29%2Bf%28b%29%2C%E4%B8%94%E5%BD%93x%3E0%E6%97%B6f%EF%B9%99x%EF%B9%9A%EF%BC%9C0%E6%81%92%E6%88%90%E7%AB%8B%2C%E8%AF%81%E6%98%8E%E7%AD%B1%E6%9E%ABwxj+%7C+2011-10-07%E8%AF%81%E6%98%8E%E2%88%B6%E5%87%BD%E6%95%B0y%EF%BC%9Df%EF%B9%99x%EF%B9%9A%E6%98%AFR%E4%B8%8A%E7%9A%84%E5%87%8F%E5%87%BD%E6%95%B0%E8%AF%B7%E9%97%AE%E8%A6%81%E5%85%88%E8%AF%81%E6%98%8E%E5%A5%87%E5%87%BD%E6%95%B0%E5%90%97)
xTKsP+,h
#u\NGIhP"Rl_jIX/xnR3:sgnN~;߽4?GPb}"uMYtMuϚ(oWkQK67p#˴)J&"S#!Oߊi;id5ޠcnE-͊}>sqeXq|ߍ<
@",rPL8*.i$E>=ן5tmOoPQg0b"-Q_r+"&"ȇQEI~.*ey4/n&<˨8v ޱI^-g'`I~t
)f
(^1Upw w>"`A"5[WT@K/oZt ]-<