题目

已知奇函数f(x)满足f(x+2)=f(x﹣2),当x∈(0,1)时,f(x)=3x,则f()=. 答案:. 【考点】函数奇偶性的性质;函数的值. 【分析】由题意可得函数周期T=4,再由奇函数的性质,结合x∈(0,1)时,f(x)=3x,进而可得答案. 【解答】解:由题意可得f(x+4)=f[(x+2)﹣2]=f(x), 故函数f(x)的周期T=4,又函数为奇函数,故有f(﹣x)=﹣f(x), ∵当x∈(0,1)时,f(x)=3x, What would have happened ________,as far as up to the river bank.A.Bob had walked fartherB.if Bob should walk fartherC.had Bob walked fartherD.if Bob walked farther
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