1 . 已知函数
(
)若
,且对任意
,方程
在
总存在两不相等的实数根,求
的取值范围_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876510f2376ebe935dc706ce9dc48957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff3c000c90c288e6727285d4f48fa9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c854a4a289d98a5f581b4429082bf868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a3f8623fc6adabea1a6a52d49c508ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9186dc3f15560a1e10970193893e9f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2 . 已知函数
则函数
的零点个数为 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6027df2155b70d2f610535dc7097b2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e55d26f79b3bf008aa5ca4478a7ea85.png)
您最近一年使用:0次
解题方法
3 . 已知函数
,设方程
的四个实根从小到大依次
,对于满足条件的任意一组实根,下列判断中正确的为__________ .(请填所有正确命题的序号)
(1)
或
;
(2)
且
;
(3)
或
;
(4)
且
.
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463192342528/1572463197954048/STEM/e65d99c9f3af496aa56355b26b074aaa.png?resizew=175)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463192342528/1572463197954048/STEM/6d78ce0aa30f49368db62cfe3fef2955.png?resizew=140)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463192342528/1572463197954048/STEM/a7b382c7249b40b2ab90168d150c36c9.png?resizew=75)
(1)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463192342528/1572463197954048/STEM/787195289b94429c8321619c40a8af7e.png?resizew=75)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463192342528/1572463197954048/STEM/313aec82a1eb47259e2e1cdf75cead54.png?resizew=147)
(2)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463192342528/1572463197954048/STEM/787195289b94429c8321619c40a8af7e.png?resizew=75)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463192342528/1572463197954048/STEM/d9542396f2d442bba372e11a4d04329d.png?resizew=124)
(3)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463192342528/1572463197954048/STEM/901b37b9a68d418fbed8f41e4dd0b233.png?resizew=75)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463192342528/1572463197954048/STEM/a286ccb16a0f4328a33e7e2a1b134416.png?resizew=87)
(4)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463192342528/1572463197954048/STEM/901b37b9a68d418fbed8f41e4dd0b233.png?resizew=75)
![](https://img.xkw.com/dksih/QBM/2016/1/22/1572463192342528/1572463197954048/STEM/9c316de103e340f68b2e6c9f2c8f9832.png?resizew=95)
您最近一年使用:0次
解题方法
4 . 已知函数
满足![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/c666655d2d314c6a882d16da81ae34b6.png?resizew=57)
,且![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/60766676cb39468d9d2e821651d82cd5.png?resizew=72)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/09b391e0880c4da5bcee49557d6c8cea.png?resizew=36)
,当
时,
,那么在区间
内,关于
的方程
且
恰有4个不同的根,则
的取值范围是________ .
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/09b391e0880c4da5bcee49557d6c8cea.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/c666655d2d314c6a882d16da81ae34b6.png?resizew=57)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/09b391e0880c4da5bcee49557d6c8cea.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/60766676cb39468d9d2e821651d82cd5.png?resizew=72)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/09b391e0880c4da5bcee49557d6c8cea.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/5a659e25f7d841e38a7986ba0a63c7ee.png?resizew=48)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/aada3cfb117747a388c53032b9c62f1e.png?resizew=56)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/b2847b2e6f4c41cf97174ba25f0150a9.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/8ce0e1bc543f4d91922e0c3490070307.png?resizew=41)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/0cec58fa79b8448ca1c1249e77cdeea3.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/9112876bfbd047059415949d9832f994.png?resizew=153)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/1c5b1983d2fd4c70835baf1292d759d7.png?resizew=52)
![](https://img.xkw.com/dksih/QBM/2016/1/6/1572421892243456/1572421898092544/STEM/b2026f0ea2274ce88e62f84df74d3724.png?resizew=13)
您最近一年使用:0次
2016-12-04更新
|
720次组卷
|
2卷引用:2016届云南师范大附中高考适应性月考三理科数学试卷
解题方法
5 . 已知函数
,
的单调增区间为___________ ;若方程
有三个不相等的实根,则m=____________ ,且三个实根的和是______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abca7bfe020fd41c06f16ff6b4f3a9e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/330aac4d09c91db1b636cfb3d819ac67.png)
您最近一年使用:0次
2016-12-03更新
|
881次组卷
|
2卷引用:2014-2015学年浙江省江山实验中学高二4月教学质检理科数学试卷
6 . 已知定义在
上的偶函数
满足对任意
都有
,且当
时,
.若在区间
内函数
有3个不同的零点,则实数
的取值范围为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4cff510b81f7160ec53b7ef179f114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54297d09c19f29d92463d21928998266.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0df6b6236228bff04c01c5e9e97e6789.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ab1422cc376958a753d5b9d945a203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4d2b1cb05fdf45dc9c5ecd35bd0efc4.png)
![](https://img.xkw.com/dksih/QBM/2015/7/7/1572169375367168/1572169380806656/STEM/69918eb58f5148ee8f2c1adaf1537cbf.png?resizew=13)
您最近一年使用:0次
名校
7 . 设函数
,对任意实数
,关于
的方程
总有实数根,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72769bda4cc318a37c4735e48ee0b45e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69d7eeb37cdcbf570e932e0614603238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-12-03更新
|
619次组卷
|
3卷引用:2015届北京市海淀区高三下学期期中练习(一模)文科数学试卷
解题方法
8 . 已知函数
,若
,且
则
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4a29248d0351e152cff3c2a4cc0d287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b73abfe4bc26b1ded680d7abb1a2cac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f5ce5e53ebca27b3041e36abbc6b9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25ea6e9fd8a0e965745e6427feb6ad02.png)
您最近一年使用:0次
解题方法
9 . 若
是定义在
上的奇函数,当
时,
,则函数
的所有零点之和为_____ .
![](https://img.xkw.com/dksih/QBM/2015/2/5/1571979311325184/1571979317084160/STEM/c05b6361cd5d41b6854a05f2c595112b.png?resizew=35)
![](https://img.xkw.com/dksih/QBM/2015/2/5/1571979311325184/1571979317084160/STEM/e43b678a5333444094b06119608d5f00.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2015/2/5/1571979311325184/1571979317084160/STEM/0c18560d4d564629a02dc65cbef1d769.png?resizew=37)
![](https://img.xkw.com/dksih/QBM/2015/2/5/1571979311325184/1571979317084160/STEM/9c26592e843a467b853e8510672d00d6.png?resizew=184)
![](https://img.xkw.com/dksih/QBM/2015/2/5/1571979311325184/1571979317084160/STEM/47ca455f45104546a7ed47a25e13fdc2.png?resizew=104)
您最近一年使用:0次
10-11高三·广东·期中
名校
解题方法
10 . 已知函数
的定义域为
,值域是
,则满足条件的整数数对
共有________ 个.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/485169ebd7c43c3359cfc03b00de5381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e578fc1c45f81a715d705f314bb06e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304226ca50149b49702928e44d565964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30277e0be448b4955903e81e8795e45d.png)
您最近一年使用:0次
2017-10-12更新
|
499次组卷
|
3卷引用:2011—2012学年上期广东省潮汕名校高三期中理科数学试卷
(已下线)2011—2012学年上期广东省潮汕名校高三期中理科数学试卷山西省运城市康杰中学2017-2018学年高一上学期第一次月考数学试题江苏省南通市启东中学创新班2017-2018学年高一上学期期初数学试题