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1 . 求下列各式的值:
(1)
;
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b6849525f1e400b51d7ab319a56625.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/378b7c76068db9cb6412164a4378c1c6.png)
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2 . 某城市地铁项目正在紧张建设中,通车后将给市民出行带来便利.已知某条线路通车后,地铁的发车时间间隔
(单位:分钟)满足
.经测算,地铁载客量与发车时间间隔
相关,当
时地铁为满载状态,载客量为
人,当
时,载客量会减少,减少的人数与
的平方成正比,且发车时间间隔为
分钟时的载客量为
人,记地铁载客量为
.
(1)求
的表达式,并求当发车时间间隔为
分钟时,地铁的载客量;
(2)若该线路每分钟的净收益为
(元),问当发车时间间隔为多少时,该线路每分钟的净收益最大?每分钟的最大净收益为多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf5fa4491e5b99458fca854f8ae43b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8c987ded553c090c1e2fcd28b71b5b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0b4fc285a387c0f60a943d54934075c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50c3594dc13f31613afc11cf7f00ad95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f1fcefccddaa5509b52ce895f88b1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59341d8d3e9f9143ff068de1d60596a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ded95209f95cb252b0ef6986faf75977.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ded95209f95cb252b0ef6986faf75977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
(2)若该线路每分钟的净收益为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0851fcf52e0ce12dcd8c8a7cd1319e2b.png)
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3卷引用:2019届山东师大附中第一次学分认定考试数学试题
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3 . 已知函数
.
(1)求
的值域;
(2)
时,关于
的不等式
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69463b4431f42658f1b8b3249ab5dc4b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790daaa89fc9d093f45023becf765697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9875c8a857b5b7a30e4d357d5ae715a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
4 . 已知二次函数
的图象过点
,对任意实数
满足
,且有最小值
.
(1)求
的解析式;
(2)求函数
在区间
上的最小值,其中
;
(3)当
时,
的图象恒在函数
的图象上方,试确定实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a990b3d285b99ea7227fb12ff91abd84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1a28d07fb1904c65774987073d6f9d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79180e49039ee41dc408dc0f8051f0c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/995ec593baa4ef50b6d87c78380953d7.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998485ffeb46a0412ff1a0f814429257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dda60f1de1292277b2a4406530bf5c08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2卷引用:2019届山东师大附中第一次学分认定考试数学试题
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解题方法
5 . 已知定义在
上的函数
在
上是减函数,若
是奇函数,且
,则满足不等式
的
的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b18d3688c7e2dccf584573eb788c28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/593eec1d076d7702617b6b384b315709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/466c610d6c9b2fd4f656524f2182594a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dd2778e08d761f09579c539cf462a78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2卷引用:2019届山东师大附中第一次学分认定考试数学试题
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解题方法
6 . 已知函数
是定义在
上的偶函数,且
,当
时,
,则不等式
的解集为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33c5311c2dbb7342c9c308e2365d10ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12873ccb7807ad49ea309703298bc2b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698cf53f76a1d637dfe2732d0a866eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec3693cb8025d8c2fc2580eea0237a7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2卷引用:2019届山东师大附中第一次学分认定考试数学试题
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解题方法
7 . 函数
在
上单调递减的充分不必要条件是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df2af67877bf2a853af116c0ad2c1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ff4a1f5d3ad9d7668fe555e70b774c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 对于给定的抛物线
,使得实数p、q满足
.
(1)若
,求证:抛物线
与x轴有交点.
(2)证明:抛物线
的最大值大于等于抛物线
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d972cf8c74b5218298b60908716a8d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c059fce1db054ebb94902a84d25fcd43.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94e864b9d4b6a0aa76416348778b26d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2630d6cf14b3e8c82ee7080799901b8d.png)
(2)证明:抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bee92cd110cd46e04633e18c17c4b88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188f03bd3b6ee375cbc88926cfbcd774.png)
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9 . 下列计算正确的是
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 如图,抛物线
与x轴交于A,B两点,把该抛物线在x轴及其上方的部分记作
,将
向右平移得到
,
与x轴交于B,D两点,如果直线
与
,
共有3个不同交点,则k的最大值是
![](https://img.xkw.com/dksih/QBM/2020/3/9/2415766425976832/2418684933521408/STEM/9154580fefff4c4c9a26665376f3053c.png?resizew=222)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d162d4eca2ba9e34ec54ed5a2566c474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae9c27791cf317a48003cd375da3a2cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://img.xkw.com/dksih/QBM/2020/3/9/2415766425976832/2418684933521408/STEM/9154580fefff4c4c9a26665376f3053c.png?resizew=222)
A.![]() | B.![]() | C.![]() | D.![]() |
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