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1.本单元重、难点分析本单元的重点:不等关系和不等式的基本性质;一元二次不等式、二元一次不等式(组)的解法;简单的线性规划问题;基本不等式a+b/2≥
1. The emphasis and difficulty of this unit analyzes the key points of this unit: the basic properties of inequality and inequality; the solution of unary quadratic inequalities, binary inequalities (groups); simple linear programming problem; basic inequality a+b/2 ≥