who are you help me to solve the math problem?已知函数f(x)是定义在实数集R上的不恒为零的偶函数,且对任何实数x都有xf(x+1)=(1+x)f(x),则f(5/2)的值是多少?（要详细答案）

who are you tell me Who are you to me? why?why?who can help you me? i can help you .but ,who can help me You are the only man -----can help me .答案是who 还是 that .横线上填什么? Tell Me Who You Are歌词 Please tell me who are you是什么意思? But ,Till me who are you? Who You Are Without Me 歌词 Me neither.I ask who you are TEII ME WHO ARE YOU 急用 can you marry me?who are U, who _______(给予)you help when you are sad. Who can help me Who can help me? Who can help me? who can help me, who can help me?