███求讲解一道绝对值不等式已知适合不等式|x+1|-|x-3|>a的解集为R,求实数a的值.(1) 当x>=3 => |x+1|-|x-3| = x+1 - (x-3) = 4(2)当-1

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███求讲解一道绝对值不等式已知适合不等式|x+1|-|x-3|>a的解集为R,求实数a的值.(1) 当x>=3 => |x+1|-|x-3| = x+1 - (x-3) = 4(2)当-1
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███求讲解一道绝对值不等式已知适合不等式|x+1|-|x-3|>a的解集为R,求实数a的值.(1) 当x>=3 => |x+1|-|x-3| = x+1 - (x-3) = 4(2)当-1
███求讲解一道绝对值不等式
已知适合不等式|x+1|-|x-3|>a的解集为R,求实数a的值.
(1) 当x>=3 => |x+1|-|x-3| = x+1 - (x-3) = 4
(2)当-1

███求讲解一道绝对值不等式已知适合不等式|x+1|-|x-3|>a的解集为R,求实数a的值.(1) 当x>=3 => |x+1|-|x-3| = x+1 - (x-3) = 4(2)当-1
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