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ڵλãҳ > 不等式的解法

ѧʽĽⷨ1_ҵʸ_ʸ/֤_ר :ʽĽⷨ(1) ѧĿ: 1.շʽʽʽʽת; 2.һϤ...
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߿ѧʽĽⷨ Ԫ_ѧ_н_ר߿ѧʽĽⷨ(⼼):ԪתΪֵ,ʱҪעȷķΧ ߿ѧʽĽⷨ(...
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һѧͬ(2)ʽĽⷨһѡ: 1.ʽ 1|x-3|6 Ľ⼯ A. {x|-3x2 4x9} C. {x|-1x2} B. {x|...
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һѧʽĽⷨ_ҵʸ_ʸ/֤_ר2.3 ʽĽⷨһѧݷ 򵥵ķʽʽֵʽĽⷨǸѧʽ...
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ʽ֪ʶ⼰_Ա_ʸ/֤_רʽ˵:ʽ.ʽĻ.ʽ֤.ʽĽⷨ....
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ָʽʽĽⷨ ָʽʽĽⷨ 5- 3-7 ⲻʽ: (1)ԭʽɻΪ x2-2x-1<2(ָĵ) ...
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߿гֺоֵʽĽⷨ_ѧ_н_ר߿гֺоֵʽĽⷨһ: f ( x ) ? a , f ( x ) ?...
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