已知函数f（x）= {2−|x|，x≤2(x−2)2，x>2 ，函数g（x）=b﹣f（2﹣x），其中b∈R．若函数y=f（x_刷题宝

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已知函数f（x）= {2−|x|，x≤2(x−2)2，x>2 ，函数g（x）=b﹣f（2﹣x），其中b∈R．若函数y=f（x）﹣g（x）恰有2个零点，则b的取值范围是____．

上一题下一题 0.0难度选择题更新时间:2017-11-15 09:46:54

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2＜b，b=

7

4

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