解题方法
1 . 执行如图所示的程序框图.
![](https://img.xkw.com/dksih/QBM/2021/5/25/2728773615927296/2800684048613376/STEM/89c2b0e4-0940-4bbb-8b6b-6ecb2aa93f50.png?resizew=292)
(1)若输入
,求所有输出的
的值;
(2)若该程序输出的所有
都相等,求输入的
的值.
![](https://img.xkw.com/dksih/QBM/2021/5/25/2728773615927296/2800684048613376/STEM/89c2b0e4-0940-4bbb-8b6b-6ecb2aa93f50.png?resizew=292)
(1)若输入
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2e098f570aa05604734433c1f72b8f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ea8f47d8d8d9e1832d52b1c7425450.png)
(2)若该程序输出的所有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97ea8f47d8d8d9e1832d52b1c7425450.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
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解题方法
2 . 为了全面提高学生的体质健康水平,充分发挥体育考试的激励作用,信阳市今年中考体育考试成绩以满分70分计人中招成绩总分(其中中长跑满分30分).甲、乙两名同学进行了多次中长跑训练,现将甲、乙两同学10次的训练成绩记录如下:
甲:24,23,28,23,28,20,26,28,25,25;
乙:16,30,30,28,29,28,26,23,29,28.
![](https://img.xkw.com/dksih/QBM/2021/7/10/2761372783394816/2776852775649280/STEM/f744a33c-dc3b-408c-90b0-fe18df342f0c.png?resizew=247)
(1)完成两组数据的茎叶图,并根据茎叶图对甲、乙两名同学的成绩作比较,写出两个统计结论;
![](https://img.xkw.com/dksih/QBM/2021/7/10/2761372783394816/2776852775649280/STEM/f21b3c86-115f-44c2-bed4-fef34b19ded8.png?resizew=195)
(2)设甲同学平均成绩为
,将这10次成绩依次输入,按程序框(如图)进行运算,问输出的
大小为多少?并说明
的统计学意义.
甲:24,23,28,23,28,20,26,28,25,25;
乙:16,30,30,28,29,28,26,23,29,28.
![](https://img.xkw.com/dksih/QBM/2021/7/10/2761372783394816/2776852775649280/STEM/f744a33c-dc3b-408c-90b0-fe18df342f0c.png?resizew=247)
(1)完成两组数据的茎叶图,并根据茎叶图对甲、乙两名同学的成绩作比较,写出两个统计结论;
![](https://img.xkw.com/dksih/QBM/2021/7/10/2761372783394816/2776852775649280/STEM/f21b3c86-115f-44c2-bed4-fef34b19ded8.png?resizew=195)
(2)设甲同学平均成绩为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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3 . 某市高三数学抽样考试中,对90分以上(含90分)的成绩进行统计,画出频率分布直方图如图(1)所示,已知130~140分数段的人数为90,90~100分数段的人数为
,求图(2)表示的运算的表达式.
![](https://img.xkw.com/dksih/QBM/2020/8/12/2526506094632960/2540324818788353/STEM/973385d9-fd1c-4da3-9ace-ac3c074f59aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://img.xkw.com/dksih/QBM/2020/8/12/2526506094632960/2540324818788353/STEM/973385d9-fd1c-4da3-9ace-ac3c074f59aa.png)
![](https://img.xkw.com/dksih/QBM/2020/8/12/2526506094632960/2540324818788353/STEM/33d0abc5-62a9-4d44-8350-742668134d0e.png)
您最近一年使用:0次
2020-09-01更新
|
209次组卷
|
2卷引用:陕西省汉中市部分高中2019-2020学年高一下学期期中数学试题
4 . 已知直线
,阅读如图所示的程序框图,若输入的
的值为
,输出的
的值恰为直线
在
轴上的截距,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/6881a85e-6eb1-4ca2-8713-daf2f0a85fbe.png?resizew=252)
(1)求直线
与
的交点坐标;
(2)若直线
过直线
与
的交点,且在
轴上的截距是在
轴上的截距的2倍,求
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23ea79bb5818b71bf1cbed70af6c65d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4be841d99196ecb866d61d6e0a5013e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/6881a85e-6eb1-4ca2-8713-daf2f0a85fbe.png?resizew=252)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fce9427c9b17e4d3cda0c3ff3e2e14.png)
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5 . 运行如图所示的程序框图.
![](https://img.xkw.com/dksih/QBM/2019/5/17/2205526967197696/2205590687162368/STEM/ebba061147264069afa01e2c3774d1f8.png?resizew=210)
(1)若输入
的值为2,根据该程序的运行过程完成下面的表格,并求输出的
与
的值;
(2)若输出
的值为2,求输入
的取值范围.
![](https://img.xkw.com/dksih/QBM/2019/5/17/2205526967197696/2205590687162368/STEM/ebba061147264069afa01e2c3774d1f8.png?resizew=210)
(1)若输入
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
第 | |||||
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c05b9832b09731a574d4a4adf7448de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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2019高一下·全国·专题练习
6 . 指出下列程序框图表示的算法,并将最后输出的结果表示出来,指出相应的循环结构,并用另一种循环结构画出这个算法的程序框图.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/20/54f105ae-37cf-4a9f-9ead-9df004d549de.png?resizew=113)
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解题方法
7 . 对任意的
,可按如图所示构造一个数列发生器,工作原理如下:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/44aacfae-a48d-42d5-ae6b-bf0ba9063abd.png?resizew=135)
①输入
,则可输出
;
②若
,则结束,否则计算
,
现定义
;
(1)求
;
(2)若输入
,写出
;
(3)若要数列发生器产生一个无穷的常数列,试求输入的初始数据
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad85616e66c06ba44d231d2cd8f8e5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/11/44aacfae-a48d-42d5-ae6b-bf0ba9063abd.png?resizew=135)
①输入
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3102c0a2f53b80f9dddbf9352537e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b97624dc2314db39684a9e6be8fc759a.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66251db1ac83f2ca84415bf959569ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0765cb956b3958cd0721f6d5fa022afd.png)
现定义
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48e1240322aeee3d1de9c3167f6ff270.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)若输入
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60014999b8d6ad53dc2c06142e7727e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086e9b14c35ef3c57b20f5e952ebf9c8.png)
(3)若要数列发生器产生一个无穷的常数列,试求输入的初始数据
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
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解题方法
8 . 从某企业生产的某种产品中抽取20件,测量这些产品的一项质量指标值,由测量得到如图1的频率分布直方图,从左到右各组的频数依次记为
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/cd2e39fd-77b8-4c84-b2c3-ecefc5d5f9de.png?resizew=250)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/69119443-cdc0-47a2-91b0-c254c8bd602b.png?resizew=205)
(1)求图1中
的值;
(2)图2是统计图1中各组频数的一个算法流程图,求输出的结果
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9721059d158853671eaf19e39769b13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd8db4b168ddbcba90ac9b31d36a0432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0709502551b86b7ae008cb6d7c2ec8c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d325748b5e8ddcff128c2e87748f705.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/106c5190bd321825b8ade773a99be0d9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/cd2e39fd-77b8-4c84-b2c3-ecefc5d5f9de.png?resizew=250)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/69119443-cdc0-47a2-91b0-c254c8bd602b.png?resizew=205)
(1)求图1中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
(2)图2是统计图1中各组频数的一个算法流程图,求输出的结果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3b2b78e13e6855da9c28d13ed16116f.png)
您最近一年使用:0次
2018-07-02更新
|
364次组卷
|
3卷引用:【全国市级联考】江西省新余市2017-2018学年高一下学期期末考试数学(理)试题
名校
9 . 如图,已知单位圆x2+y2=1与x轴正半轴交于点P,当圆上一动点Q从P出发沿逆时针方向旋转一周回到P点后停止运动设OQ扫过的扇形对应的圆心角为xrad,当0<x<2π时,设圆心O到直线PQ的距离为y,y与x的函数关系式y=f(x)是如图所示的程序框图中的①②两个关系式
(Ⅰ)写出程序框图中①②处的函数关系式;
(Ⅱ)若输出的y值为2,求点Q的坐标.
(Ⅰ)写出程序框图中①②处的函数关系式;
(Ⅱ)若输出的y值为2,求点Q的坐标.
![](https://img.xkw.com/dksih/QBM/2018/4/12/1922379747237888/1926658491375616/STEM/9df3a646bbe94e689bef0132f80b681c.png?resizew=426)
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10 . 程序框图如图,运行此程序,试求输出的b的值.
![](https://img.xkw.com/dksih/QBM/2018/3/20/1906054371844096/1907557868118016/STEM/5b576bad12324436a6b84c20444edf16.png?resizew=111)
您最近一年使用:0次