已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ee31c6a67c5db902012541354eb0c4.png)
(1)求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a1539c074dbff8cb4198cabeee36ed.png)
(2)画出函数
图像,若其图像与直线
有三个交点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ee31c6a67c5db902012541354eb0c4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a1539c074dbff8cb4198cabeee36ed.png)
(2)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af79f45b5880c72a349500da9d8e118d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
23-24高一上·陕西渭南·阶段练习 查看更多[2]
更新时间:2023-10-10 13:35:17
|
相似题推荐
解答题-应用题
|
适中
(0.65)
解题方法
【推荐1】某网店对某一季节商品过去20天的销售价格及销售量进行了监测统计,发现第x天(
,
)的销售价格(单位:元/件)
,第x天的销售量(单位:件)
,已知该商品成本为每件25元
(1)写出销售额t关于第x天的函数关系式;
(2)求该商品第七天的利润;
(3)该商品第几天利润最大?并求出最大利润.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3288cc154a0946b1ebdc8605e7e16233.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54c50fb5615e36df436d747356b00d78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e8d283fd0b1cd28b6b0c58b27f730eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a35b5eb0ce1431a1b678dad8cbda056.png)
(1)写出销售额t关于第x天的函数关系式;
(2)求该商品第七天的利润;
(3)该商品第几天利润最大?并求出最大利润.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知函数
.
(1)若函数
的最小值是
且
,
,求
的值;
(2)若
,
且
在区间
上恒成立,试求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b549f08ef7faed4f6fb6166191b77fe.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5704be464d81a1c74c626bb4752f75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/026ca485feb0666aa33ff5c4b371cf1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed8eb2512e05a3cf133f893a8d1aa2ce.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fdf1eec5487c094e8d38cbc77b91604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589ed49839c4dc0b033431d88a4c1f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
名校
解题方法
【推荐1】已知函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/10/b62d7750-5bd3-428d-8f8f-2be12c0a7c09.png?resizew=243)
(1)画出f(x)的图象,并写出
的解集;
(2)令f(x)的最小值为T,正数a,b满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fae2a874cbb5f6bb6d45f2e08a592c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/10/b62d7750-5bd3-428d-8f8f-2be12c0a7c09.png?resizew=243)
(1)画出f(x)的图象,并写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b45f8224a638bb503ccb01749cfeb1.png)
(2)令f(x)的最小值为T,正数a,b满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d069a600152af92a7fada66aa91138a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134c1c7e7fd9c7700ee49b0cd788227a.png)
您最近一年使用:0次
解答题-作图题
|
适中
(0.65)
解题方法
【推荐2】设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5e2f76311de78baf7c42c3a9c955ae.png)
(1)将函数写成分段函数并画出函数的图像;
(2)求
的值;
(3)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5e2f76311de78baf7c42c3a9c955ae.png)
(1)将函数写成分段函数并画出函数的图像;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1e8ae93be5d4f44440dc3d2613d0ea.png)
(3)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca6ad4d23e3a0c6bf7a538e577081b7e.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】已知
且c>0.
(1)若
时,函数
的最小正周期为π,求
;
(2)当
时,求函数
在
上的严格减区间;
(3)若
时,函数
在
内有且仅有2023个零点,求正实数c的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/442a2046e2e59401a2c7e7aba949205c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dcf8900b03ae62d040963ee98158d0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4afe2a921bd8126cd38e0f40a2d4a9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354c7340146a27f3df081c0053cc903a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dcf8900b03ae62d040963ee98158d0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/025ed878b5ab1f6cb06b30a821cd8925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fb37ae6ada1e908f4ead466ce03b3a5.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知函数
,
.
(1)若函数
在
上单调递增,求
的最小值;
(2)若函数
的图象与
轴有且只有一个交点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1572b2608f37ade411a9230acf81cdc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dba188d3431ef1a903580ac3096587f1.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f3c2be7482719651bcf491949681e05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce2594833690eedb3328fe747feb3a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fa368359d1382330e7e32158203f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次