2022-11-01 12:09发布
最大值max= 4最小值min=-36/11解答过程：由不等式两边同时乘以6，得 2(2x-1)-6>=6x-3(5-3x) 4x-2-6>=6x-15+9x
不等式两边同时乘以6，得2(2x-1)-6>=6x-3(5-3x)4x-2-6>=6x-15+9x11x<=7x<=7/11x-1<0x+3>0所以 |x-1|-|x+3|=1-x-x-3=-2-2x所以 -2x>=-14/11-2-2x>=-36/11|x-1|-|x+3|的最小值 =-36/11|x-1|-|x+3|的最大值为正无穷
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不等式两边同时乘以6，得
2(2x-1)-6>=6x-3(5-3x)
4x-2-6>=6x-15+9x
11x<=7
x<=7/11
x-1<0
x+3>0
所以 |x-1|-|x+3|=1-x-x-3=-2-2x
所以 -2x>=-14/11
-2-2x>=-36/11
|x-1|-|x+3|的最小值 =-36/11
|x-1|-|x+3|的最大值为正无穷
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