已知关于
的不等式
.
(1)若
,求不等式的解集;
(2)若
,求不等式的解集;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1501ce21f33a12245c0a54cb209a10fd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dd82b5223c2a708c1729db2a3750990.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
更新时间:2021-11-28 20:49:33
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】已知二次函数
.
(1)若
的解集为
,解关于x的不等式
;
(2)若对任意的
不等式
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331d5e308cd5469e0f28a8d75f79903f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb5f96864b1d48a0ed7c75d972c06eee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b03f81246769936154d50d832366d.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25e72f73a14e6449fe4a18bd0fa9b739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0725b62bfc941e064258af9bafa19f02.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知集合
,
.
(1)当
时,求
;
(2)已知“
”是“
”的充分条件,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/9/13/1573019206893568/1573019212955648/STEM/927d0d12007f47e5a81c41e071f2c3a1.png)
![](https://img.xkw.com/dksih/QBM/2016/9/13/1573019206893568/1573019212955648/STEM/853a54c8367c4d3e9be3892b97605086.png)
(1)当
![](https://img.xkw.com/dksih/QBM/2016/9/13/1573019206893568/1573019212955648/STEM/bad6db6cd9f148e3a62ffd960806b52a.png)
![](https://img.xkw.com/dksih/QBM/2016/9/13/1573019206893568/1573019212955648/STEM/343b740384fe4c28acb321cce934f0b6.png)
(2)已知“
![](https://img.xkw.com/dksih/QBM/2016/9/13/1573019206893568/1573019212955648/STEM/1cb9919e2b3141539bd695062e9238d8.png)
![](https://img.xkw.com/dksih/QBM/2016/9/13/1573019206893568/1573019212955648/STEM/b5e5bf4634344c22b5eb8751bc3840d0.png)
![](https://img.xkw.com/dksih/QBM/2016/9/13/1573019206893568/1573019212955648/STEM/1f4e44a88b5d4cc6bdda9e222be90379.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐1】设
实数x满足
,
实数x满足
.
(1)若
,且p,q都为真命题,求x的取值范围;
(2)若q是p的充分而不必要条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b09b80ac252dd10babc7977939a97d08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53217994db657f092ce3c8d47eea55a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
(2)若q是p的充分而不必要条件,求实数a的取值范围.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba6fc6ea719aea93d2d460cefcbd7a90.png)
(1)若不等式
的解集为(-1,3),求a,b的值;
(2)若
求
的最小值.
(3)若
,求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba6fc6ea719aea93d2d460cefcbd7a90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86371efecb0128b37fbdcc0916ac0b7d.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/814bd2e46f7e975818c5d2c28b5c9131.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f10299a0d78ab511b63e7803a75743bb.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76db492a0f49989ee85853487fa4dede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e799e937076aa5a7dcd51cdc0f40f6b0.png)
您最近一年使用:0次