y=根号（X+1)平方+1+根号(X-2)平方+4
令X=-1,y=5.16
令X=2 时y=4.6
函数y=根号(x平方+2x+2)+根号(x平方-4x+8)最小值怎么求?
函数y=根号(x平方+2x+2)+根号(x平方-4x+8)最小值怎么求?
数学人气：751 ℃时间：2019-10-08 07:19:33
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