名校
解题方法
1 . 过
轴正半轴上一点
作直线与抛物线
交于
,
,
两点,且满足
,过定点
与点
作直线
与抛物线交于另一点
,过点
与点
作直线
与抛物线交于另一点
.设三角形
的面积为
,三角形
的面积为
.
(1)求正实数
的取值范围;
(2)连接
,
两点,设直线
的斜率为
;
(ⅰ)当
时,直线
在
轴的纵截距范围为
,则求
的取值范围;
(ⅱ)当实数
在(1)取到的范围内取值时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62769b7177ef4bc952dc1dd51d6b510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f8eb63af65ec83b223ac31f18738cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93d889bd26df14fe80111534d9c81d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1440ea23c04adc6e049e57a1de89942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/343a7ab6571ec674d8ec3dd5492fccaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/343a7ab6571ec674d8ec3dd5492fccaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1885efcff0b903e314057dd153578600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/193b5b41994c2a4dfa5bb0bc984061cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
(1)求正实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed1e9cdd5a82f29ec89b2c53b4fa6f8.png)
(ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e25b9b8e906fa529f5786091bf2317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2110c1f8d9858bdbcea63eb6cb3cbd2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed1e9cdd5a82f29ec89b2c53b4fa6f8.png)
(ⅱ)当实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad5a9147b25285124851a61c7d1a24a.png)
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2020-05-18更新
|
337次组卷
|
2卷引用:2020届黑龙江省哈尔滨市第三中学高三学年第一次模拟考试理科数学试题
2 . 设函数
,若函数
有且只有一个零点,则实数a的一个取值为__________ ;若函数
存在三个零点,则实数a的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c5ecb70c86715deca41f55af4c827fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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名校
解题方法
3 . 关于
的不等式
的解集中有且仅有两个大于2的整数,则实数a的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3767a6c0d225947f6e6db4d2c633b1fa.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2022-11-18更新
|
895次组卷
|
7卷引用:福建省泉州第五中学2023届高三上学期期中考试数学试题
福建省泉州第五中学2023届高三上学期期中考试数学试题(已下线)专题08 导数与函数综合压轴(选填题)-3内蒙古赤峰二中2022-2023学年高二下学期第二次月考数学(理)试题福建省宁德第一中学2023届高三一模数学试题(已下线)专题06 函数与导数常见经典压轴小题归类(26大核心考点)(讲义)-1(已下线)信息必刷卷05(江苏专用,2024新题型)(已下线)重难点突破08 利用导数解决一类整数问题(四大题型)
名校
解题方法
4 . 已知
是自然对数的底数,当
时,关于
的不等式
的解集非空,则实数
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e44add7ea8847e500b9ae8929ad46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9405865a7153e36ae2d40203db1de491.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2021-03-23更新
|
490次组卷
|
5卷引用:云南省2021届高三第一次复习统一检测数学(理)试题
名校
5 . 设函数
,
,给定下列命题:①不等式
的解集为
;②函数
在
上单调递增,在
上单调递减;③若函数
有两个极值点,则实数a的取值范围为
;其中正确命题的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb3b6c56aee4bb8a8131fd960415c745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17862bbcaf26020af71e8f9d89a91b06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eee31b9dffcd91ff2f5477410bc09f95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8b770273b2fc728d68ba01589f8bc92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/269a04a7a7b62ac0be68f0cb9445e606.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4939ce3f85f6771217c875c0b5ee8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e83eefa2d62adec7da915408483e4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
A.3 | B.2 | C.1 | D.0 |
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6 . 已知函数
,
的解集为
,若
在
上的值域与函数
在
上的值域相同,则
的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a42400e46ea4cdc78fd3e8eafc71c72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34ed249c27b60fe796bfb697de3abddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
7 . 不等式
的解集为
,且
,则实数
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c9427a993a356be96c1355a003bf71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0655415e35d1bf7b5de59012271af4cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2011·湖北·一模
名校
8 . 不等式
的解集为
,且
,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e05748789a6247cafcada05256dac142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e77a2a551fc573e49bb2e1df6016aa91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-04更新
|
524次组卷
|
5卷引用:2012届湖北岳中高中一轮复习理科数学滚动测试三
9 . 已知关于
的不等式
的解集为
,集合
.若“
”是“
”的充分不必要条件,则实数
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9d27eeedf313bf790344786f903b8f4.png)
![](https://img.xkw.com/dksih/QBM/2015/2/10/1571988468047872/1571988473503744/STEM/dcf2478851c041e588782ce832fb26c3.png?resizew=16)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/204f3e599dc280ad99298b3a634923f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://img.xkw.com/dksih/QBM/2015/2/10/1571988468047872/1571988473503744/STEM/bd6638d09a9d4ff8a68d02fa32d5d3a2.png?resizew=13)
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