高中数学人教版必须修读五_3_2_2一元二次不等式的解法.ppt
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一元二次不等式解法及其应用
(二)
2017年4月7日星期五
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一、知识点
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三、实际应用
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三、 形如 、 不等式的解法
1、 形如的一元二次不等式 的解法
该形式的不等式,即可按照前面的方法求解,也可
按下述方法求解,根据积的符号法则化成一次不等
式组。下面以一题为例,向大家展示这种解法:
。12 。
Evalua
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