2020高三·全国·专题练习
解题方法
1 . 设函数
,若不等式
的解集是
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
________ ;若对于任意
,不等式
有解,则实数
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cda61f1a58dc25af423f15149d50277e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4559e8b5861ebbf7c0f5c6d9a819f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998485ffeb46a0412ff1a0f814429257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46aacbc97650ee775b9549bec3442f4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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解题方法
2 . 已知函数
,当
时,不等式
的解集是________ ,
,若
存在两个零点,则
的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53162a6601528f5ed695fc56c1d9965.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f5a67583e7f6d14cfb7be5aa636936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63b5e96007f5ba0573265009f9647afb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-08-27更新
|
310次组卷
|
4卷引用:2019年浙江省名师原创预测卷(一)
2019年浙江省名师原创预测卷(一)(已下线)专题2.4 等式与不等式(单元测试卷)-2021年新高考数学一轮复习讲练测(已下线)专题2.2二次函数与一元二次方程、不等式(B卷提升篇)-2020-2021学年高一数学必修一同步单元AB卷(人教A版浙江专用)江苏省淮安市涟水县第一中学2020-2021学年高二上学期10月阶段性测试数学试题
2020高三·全国·专题练习
3 . 已知函数
,则:
(1)不等式
的解集为________ ;
(2)若不等式
的解集为R,则
的取值范围为________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98d916b7145fb85cdfe34832a799316d.png)
(1)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640d3bcd10055871a5ec2f442c1030c1.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc99846cc58c8b63e1c305397889118.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
4 . 设函数
,则不等式
的解集为______ ,若存在实数
满足
成立,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1920e26a1a68593793985756085c89fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c7679f885826301bb5a826ba7bcea01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4187169387355b0f2efb3c6aa34ef61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
5 . 已知
,函数
,当
时,不等式
的解集是_____ .若函数
恰有2个零点,则
的取值范围是___ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd9736828195f010db4e1f0a9dea7a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6e9808a55682baa4490ae60a45b646.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2020高三·浙江·专题练习
6 . 已知函数
,则不等式
的解集为_____________ ;若关于x的方程
存在实数解,则实数
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f06c187d1232931febb2bf02ced83ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3724a06c162bf53b217afaab26a06d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25eaa5f3ee0395bfe091e74092dad273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
7 . 已知
,函数
,当
时,不等式
的解集是_____ ;若函数
恰有两个零点,则
的取值范围为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6073c18a404219c6ee023da9ee6016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23990f831dc96e005a653d77173ac10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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2020高三·全国·专题练习
8 . 已知命题p:f(x)=
在区间(0,+∞)上是减函数;命题q:不等式
的解集为R.若命题“p∨q”为真,则实数m的取值范围是______ ;若“p∧q”为假,则实数m的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ede5489b649edfa7481a6a9d4273ce3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49770b8b59afc8c9a2f58b08f06caf0e.png)
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解题方法
9 . 已知函数
,则不等式
的解集为______ ,若实数
,
,
满足
且
,则
的取值范围是_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ed5482989a8c09175e24edecee724d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66d61d5f66d68b4c4a2a25fd7103621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6637110325fc5bcb6337762aecf53d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73abfe4bc26b1ded680d7abb1a2cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53aac8ed7ecc41d22656d55b76cbd6b3.png)
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2020-04-10更新
|
565次组卷
|
3卷引用:2019届浙江省绍兴市柯桥区高三上学期期末数学试题
10 . 函数
,当
时,不等式
的解集是__________ .若函数
的值域是
,则实数
的取值范围是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b04d9a06d03f1a805bf470cf0549808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27a5569b9f84d91f16f1762ef1e6d0c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43058c020b5886583a93206bef0847fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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