已知函数
.
(1)若
的解集是
,求不等式
的解集;
(2)若
,
,解关于x的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fdad1e5b53f816db7b5f092357e040a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e12a49601927242c500e1e3b331112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259fc8df4d5abe96e0e2af06e5df0010.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4638bb5fb3deacdcf65da8c8ac4aacf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59b599a5cbbca3c20638a1a14ff37d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
20-21高一·全国·课后作业 查看更多[2]
更新时间:2021-08-25 09:08:10
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相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知关于x的不等式
.求这个关于x的不等式的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3640bc9aa9f354ea785afe015e07a8c.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知命题
实数
满足
,其中
;命题
方程
表示双曲线.
(1)若
,
和
均为真命题,求实数
的取值范围;
(2)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/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ea3ec13874cd5585f38f87bad486a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73cc6e11c743bedd3a039b677f5bec2a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐3】(1)求函数
的最小值;
(2)若正数x,y满足
,求
的最小值;
(3)解关于x的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9dcdb9a02b656c10e8a1abb72dca36f.png)
(2)若正数x,y满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d57df333b2783a9d7eacfa8cf6c81c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c3836619ba47499fca6df4e5182da9d.png)
(3)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64e9683df3d4215d40803b8724672776.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】已知函数
.
(1)若关于
的不等式
的解集为
,求实数
的值;
(2)若
对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44769801cfa208a81dba6563716c2707.png)
(1)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00ceecc2405f8c8d23841e168322ff41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ff578667ce116aa9488210d7def4c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d620e6b978fb345e5b8f5f257a611c93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f985e409ac82c9740978081685b46934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐2】已知关于
的不等式
.
(1)若原不等式的解集为
或
,求
的值;
(2)若
,且原不等式的解集中恰有7个质数元素,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e14e6ab93f5f55f926f3aea9945ae2ef.png)
(1)若原不等式的解集为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc0340fbc076acd4cf21ccf387f66b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d2212ca63a0f4cac1086319559aa388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次