根号3分之8*根号3又8分之3= 根号3.2*10的2次方*根号0.02*10的5次方
人气：351 ℃ 时间：2019-10-11 12:55:52
解答
绝对值最小是0
此时a-3=0
所以a=3
|a-3|-4最小=-4
平方最小是0
(a+2)平方最小是0
所以-(a+2)平方最大是0
此时a+2=0
所以a=-2
最大值=5
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