１．函數(shù)f(x)滿足f(x+2)=f(x),當(dāng)－１≦x<1時(shí)，f(x)=x^2+1,則當(dāng)x∈[2n-1,2n+1)且n∈Z時(shí)，f(x)=___２．函數(shù)f(x)的圖象關(guān)于直線x=1對(duì)稱，當(dāng)x≦1時(shí)，f(x)=x^2+1,則當(dāng)x≧1時(shí)，f(x)=___答案是１．（x-2n)^2+1 2. (2-x)^2+1

熱心網(wǎng)友

1，由f(x+2)=f(x)可知其周期為2, 設(shè)2n-11時(shí)，y=f(x)上任一點(diǎn)(x,y),關(guān)于x=1的對(duì)稱點(diǎn)為(x1,y1),則由對(duì)稱可知x1+x=2,y=y1,x1=2-x,y1=y,因?yàn)?x1,y1)在當(dāng)x≦1時(shí)，f(x)=x^2+1上，所以有y1=x1^2+1,代入得y=(2-x)^2+1