解题方法
1 . 已知
,
, 若
是
的充分不必要条件, 求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af1675557b1721905bb41c96923688ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe09ed82e458ba9c8b8cf5580327696c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a037d29525d118dc083dc3e5e808ca2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02475842a0c8318db41c5c38c3af7e66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 已知a∈R,设命题p:函数f(x)=ax (a>0且a≠1)是R上的单调递减函数;命题q:函数g(x)=lg(2ax2+2ax+1)的定义域为R.若“pÚq”是真命题,“pÙq”是假命题,求实数a的取值范围.
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解题方法
3 . 已知命题
:在
时,不等式
恒成立;命题
:存在
使得关于
的不等式
成立,若命题“
”是真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cc0cf1f1591a2961c5f73f25dcd5377.png)
![](https://img.xkw.com/dksih/QBM/2016/6/13/1572725451702272/1572725457928192/STEM/6c39a2b42c1d4063afd0ff063b1fe842.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e36a1aed569935b465e346b20ad9a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b73c56147da3460d3780a6684dd627.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0045a603e555d2d2a8ef634f9edf9951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
4 . 已知
函数
的定义域为
,
函数
在
上是减函数,若“
”为真,“
”为假,试求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891dccd05533706a74634e6998cff296.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce962add71be411bb0473127b1a297c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c610c24fafe30aa77dff402dfd71a0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0045a603e555d2d2a8ef634f9edf9951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a31351c3868449fd115650c13152be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-04更新
|
337次组卷
|
5卷引用:2015-2016学年湖北黄冈中学高二下学期周末测试数学试卷
5 . 已知P:2x2﹣9x+a<0,q:
且¬p是¬q的充分条件,求实数a的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/4/27/1572605606526976/1572605612326912/STEM/bcc2726e057546b7b87f123ac720396d.png)
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6 . 给定两个命题,命题
:对
,不等式
恒成立,命题
:关于
的方程
有实数根;若
为假命题,
为真命题,求实数
的范围.
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572564857307136/1572564863459328/STEM/5558b889a9704bcba141540d7f4eee30.png)
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572564857307136/1572564863459328/STEM/a2e5ea57b2ff4d02811d6348e6dc4768.png)
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572564857307136/1572564863459328/STEM/608681d814e64e6aa11a72e530d57318.png)
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572564857307136/1572564863459328/STEM/aea589ed605b4eb7929501c919458b33.png)
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572564857307136/1572564863459328/STEM/79e6d592d4a646cfa1aeb0875a1ce332.png)
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572564857307136/1572564863459328/STEM/39d1bd782e174650938a4a81f5a48172.png)
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572564857307136/1572564863459328/STEM/e7ad0ccd7c024de4b59a844f6061ea54.png)
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572564857307136/1572564863459328/STEM/0733ad2dade3441b86162615e644255a.png)
![](https://img.xkw.com/dksih/QBM/2016/4/6/1572564857307136/1572564863459328/STEM/31c438cce121483c89320d714e424cb3.png)
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名校
7 . 设命题p:函数f(x)=lg(x2+ax+1)的定义域为R;命题q:函数f(x)=x2﹣2ax﹣1在(﹣∞,﹣1]上单调递减.
(1)若命题“p∨q”为真,“p∧q”为假,求实数a的取值范围;
(2)若关于x的不等式(x﹣m)(x﹣m+5)<0(m∈R)的解集为M;命题p为真命题时,a的取值集合为N.当M∪N=M时,求实数m的取值范围.
(1)若命题“p∨q”为真,“p∧q”为假,求实数a的取值范围;
(2)若关于x的不等式(x﹣m)(x﹣m+5)<0(m∈R)的解集为M;命题p为真命题时,a的取值集合为N.当M∪N=M时,求实数m的取值范围.
您最近一年使用:0次
2016-12-04更新
|
396次组卷
|
2卷引用:2015-2016学年湖北省荆州中学高二上学期期末理科数学试卷
8 . 设命题p:函数
的定义域为R, 命题q:双曲线
的离心率
,
(1)如果p是真命题,求实数
的取值范围;
(2)如果命题“p或q”为真命题,且“p且q”为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a211330d5d00f70a4cc4ce0a5d7ed4.png)
![](https://img.xkw.com/dksih/QBM/2015/12/10/1572348650799104/1572348656885760/STEM/a04a25374ba54d62bde4ce2bc9a6dee8.png)
![](https://img.xkw.com/dksih/QBM/2015/12/10/1572348650799104/1572348656885760/STEM/9c26d558bed24ba7b654c7efa4878dc8.png)
(1)如果p是真命题,求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)如果命题“p或q”为真命题,且“p且q”为假命题,求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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9 . 已知命题P:“
,都有不等式
成立”,命题Q:“关于
的方程
只有一个实数根”
(Ⅰ)若命题P是真命题,求实数
的取值集合B;
(Ⅱ)若命题“P且Q”为假,命题“P或Q”为真,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2015/11/26/1572312609161216/1572312615256064/STEM/0c9277eeee33431fa9fc68e90e81579c.png)
![](https://img.xkw.com/dksih/QBM/2015/11/26/1572312609161216/1572312615256064/STEM/b6a17a079a0e4bb0a1ef1ddb8dccbd2a.png)
![](https://img.xkw.com/dksih/QBM/2015/11/26/1572312609161216/1572312615256064/STEM/146ce2e0bf8940b7befcb1bf6d489d68.png)
![](https://img.xkw.com/dksih/QBM/2015/11/26/1572312609161216/1572312615256064/STEM/f93c5a22f6394f40aac222c506bd3a96.png)
(Ⅰ)若命题P是真命题,求实数
![](https://img.xkw.com/dksih/QBM/2015/11/26/1572312609161216/1572312615256064/STEM/f3121a335acb4a4a9dd82deb5b9efb42.png)
(Ⅱ)若命题“P且Q”为假,命题“P或Q”为真,求实数
![](https://img.xkw.com/dksih/QBM/2015/11/26/1572312609161216/1572312615256064/STEM/f3121a335acb4a4a9dd82deb5b9efb42.png)
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10 . 已知命题
方程
表示圆;命题
双曲线
的离心率
,若命题“
”为假命题,“
”为真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c4f8e1572f08af598e93128dcebce75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd6d2402a52bc7424459afd3a19a1f04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd9ca6f11332384a25518e8070341566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edfd9d269ac8e9e2ac45c186fb10e8d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a31351c3868449fd115650c13152be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0045a603e555d2d2a8ef634f9edf9951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2016-12-03更新
|
1297次组卷
|
4卷引用:湖北省黄冈市2017-2018学年高二上学期期末考数学(理)试题