已知:关于
的一元二次方程
的两根
,
满足
,双曲线
经过
斜边
的中点
,与直角边
交于
(如图),求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1220d6bcf543aa78976424fa50b69305.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa54575178de8e4177100173360cde8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3bb63bc03f486e4affc59a8df3b2ae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b352fa3e781df195ceccca90c3932a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc127849f12e579c0bb3f7d60fb2bb5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/2/06265682-2607-4f6e-9c3b-ebc947c2952a.png?resizew=152)
更新时间:2023-03-31 15:54:13
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相似题推荐
解答题-问答题
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适中
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【推荐1】已知关于
的一元二次方程
(
为常数).
(1)当
时,求此时方程的解;
(2)若方程两实数根为
,
,且满足
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f255bd868ebaad7b5607a9ddff86b4fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
(2)若方程两实数根为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64ab83f5c1abdb9433fcfc6916504a0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐2】已知关于x方程x2-6x+m+4=0有两个实数根x1,x2
(1)求m的取值范围.
(2)若
,求m的值.
(1)求m的取值范围.
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5edbb1f3357339112bb40cd7aa36955f.png)
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适中
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【推荐1】已知关于x的一元二次方程
有实数根.
(1)求实数k的取值范围.
(2)设方程的两个实数根分别为
,若
,求k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59622a205437422c7d865942e59ecc1d.png)
(1)求实数k的取值范围.
(2)设方程的两个实数根分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe8142efd435559f1925a7942b53dfb.png)
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(0.65)
名校
【推荐2】关于x的一元二次方程
有两个不相等的实数根
,
.
(1)求实数m的取值范围;
(2)是否存在实数m,使得
成立?如果存在,求出m的值:如果不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae4ecb970fa45d3acb13a1da65646218.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
(1)求实数m的取值范围;
(2)是否存在实数m,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41b8c7a32438199cabe883c84f81ca85.png)
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【推荐1】如图,点
在反比例函数
的图像上,连接AO并延长、交反比例函数
的图像于点B,已知OA=3OB.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/6/91cd8637-e34f-49d0-b4eb-769e7f1123b6.png?resizew=199)
(1)求n,k的值.
(2)若点P在x轴上,且△APB的面积为2,求点P的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2769b1ac0451bb9141589cc050f827d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66c98b0051ca398ce79b5c6d9cbf2d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9212e728b36c078188606c9d429389d6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/6/91cd8637-e34f-49d0-b4eb-769e7f1123b6.png?resizew=199)
(1)求n,k的值.
(2)若点P在x轴上,且△APB的面积为2,求点P的坐标.
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适中
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【推荐2】如图,在平面直角坐标系中,
点的坐标为
,
轴于点
,
,反比例函数
图象的一支经过
的中点
,且与
交于点
.
(1)求点
的坐标;
(2)求反比例函数的解析式:
(3)四边形
的面积为________.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04f190d3d97c29097b3e451f8528c9bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24624dffd30b66a5e4de57362b32b2a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57361061dfdd2b09952da3bc028e35e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07854693dd2e33f66030d6106eb6e0ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/30/df32caf4-441d-4c89-8ebf-cabb0e0b33e4.png?resizew=161)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)求反比例函数的解析式:
(3)四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f011498c4983e0583dd0b973287bf9ce.png)
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解答题-证明题
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适中
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【推荐1】如图,在
的外接圆
中,直径
,过点B作
交
于点D,过点B作
的切线交
的延长线于点E,连接
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/19/1e4aa3a3-9dd8-4912-89c3-c18aa3b86cfb.png?resizew=175)
(1)求证:
;
(2)依据题意,填空:
①当
_____________
时,四边形
是菱形;
②当
_____________时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb33223abe06d8796f56b302d12d866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25936fd4f4465ef81d595dcb3968d857.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/19/1e4aa3a3-9dd8-4912-89c3-c18aa3b86cfb.png?resizew=175)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212bfbd5575772ca36d6fc3e7b246e49.png)
(2)依据题意,填空:
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce2a8bf5e05a07c93a7104839fc21849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83873a9d782f2588c5eedbfe73f9bc2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0947161887af7b78afde80c0cd647d58.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5277fa450a0c513a86a74420f8ee99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b38bc5de15b81583cc826368a0f5d1a0.png)
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名校
【推荐2】类比、转化、分类讨论等思想方法和数学基本图形在数学学习和解题中经常用到,如下是一个案例,请补充完整.
![](https://img.xkw.com/dksih/QBM/2022/12/19/3134244758528000/3139880573755392/STEM/c83cf74492c641c9938350d9647d6fea.png?resizew=448)
(1)原题:如图1,在
中,
是直径,
于点B,
于点D,
,
,
,则
= .
(2)尝试探究:如图2,在
中,
是直径,
于点B,
于点D,点E在
上,
,
,
,
,则
= (写出解答过程).
(3)类比延伸:利用图3,再探究,当
两点分别在直径
两侧,且
,
于点B,
于点D,
时,则线段
满足的数量关系为 .
![](https://img.xkw.com/dksih/QBM/2022/12/19/3134244758528000/3139880573755392/STEM/c83cf74492c641c9938350d9647d6fea.png?resizew=448)
(1)原题:如图1,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1be642ddd61c3ad26bcbe2dc42e3512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1fbbed1dbff0bdf2de260443749e151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60096d11a222426d712390d3aad75ff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e673ef2d48215ca84a48377f17d6df00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
(2)尝试探究:如图2,在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d97cdc586744d208b6f69c9813af977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1be642ddd61c3ad26bcbe2dc42e3512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1fbbed1dbff0bdf2de260443749e151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d888e40f68fe8a24d5dc9c749024808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71e6ea7333dbc78d0a7b9bc3892f940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2aed41a24643f0eb8685eb252388f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
(3)类比延伸:利用图3,再探究,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e478787ebfeb68a5a7594dbd9eecd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9e5df1deb0777794ec0c8d44571409.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1be642ddd61c3ad26bcbe2dc42e3512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1fbbed1dbff0bdf2de260443749e151.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60096d11a222426d712390d3aad75ff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4e1d80d127f5849bd6bc2b537201834.png)
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