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ڵλãҳ > 不等式组的解法

2һԪһʽĽ:һԪһβʽĽ⼯ĹֽɵһԪһʽ Ľ. 3һԪһβʽ:һԪһβʽ...
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ʽĽⷨӦ_һѧ_ѧ_н_רʽĽⷨвʽʵʽĽⷨʵӦһ֪ʶ 1һԪһ...
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x ʽ(x+15)/2>x-3, (2x+2)/3<x+a ֻ 4 , a ȡֵΧ??? ? x ? 15 ? x?3 ? ? 2 ? ? 2x ? 2 ? x ?...
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1. (2011 ʡϾ) ⲻʽ ? x ? 1 x дʽ. ? , ? 2 ? 3 ::ⲻʽ, x ?1 .ⲻ...
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( ) ( ) <0 (1) a < 1 - a , a < 1 ? a < x <1 - a ʱɵ , 2 ? ? x >1 - 2a 1 ,ʽĽΪ 1 - 2a < x...
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6} . ˵:ⷨһҪעȼʽĽÿʽĽ, ĽIJ,. ⷨ, šǹؼ.ÿʽ...
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ٽһԪߴβʽ; ڽʽʽ; ۽ʽ; ָܽʽ; ݽʽ; ޽ֵIJʽ; ߽ʽ. 2.ⲻʽʱӦر...
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ο: 1 : ,ɢٵ 2x2, x1;ɢڵ x<3;ʽĽΪ:1x<3. 2.: ,ɢٵ:x5,ɢڵ:x>2,ʽĽΪ...
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һԪʽ̰_ѧ_н_רһԪʽ...? . 5.ƿα 80 ҳϰ 3.2[A] 1 ĵ 666...
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ʽʽ֪ʶ һ֪ʶ 1.÷š<>ܡݡʾСϵʽӽʽ 2.ʽĽ:ʹʽδֵ֪,...
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