名校
解题方法
1 . 已知向量
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a18798408a1b91fdb12deb79f0b562a.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b7a9dbca961d7326a25a8d50ff96469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e843bf3f5c909660592525be765f98c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a18798408a1b91fdb12deb79f0b562a.png)
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2 . 若
中,
,
,则
面积的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e899c486dc49e560fc4aca05e16835b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.2 | C.![]() | D.4 |
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3 . 解下列不等式:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed3b76cedebe03e7ba487b2989e91440.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/626733af6b6dc3e03d5f45c90768269e.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a1eaa9cd4b3699df5558b670a61d5a8.png)
(4)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed3b76cedebe03e7ba487b2989e91440.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/626733af6b6dc3e03d5f45c90768269e.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a1eaa9cd4b3699df5558b670a61d5a8.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a16ce054d9cad271b309566453b25f4.png)
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4 . 在平面直角坐标系
中,对于点
和
,给出如下的定义:点
的横坐标差的绝对值和它们的纵坐标差的绝对值中较小的一个(若它们相等,则取其中任意一个)称为
两点的“近距”,记为
.即:若
,则
;若
,则
.
(1)请你直接写出
,
的“近距”
______﹔
(2)在条件(1)下,将线段
向右平移
个单位至线段
,其中点
分别对应点
.若在坐标轴上存在点
,使
,请求出点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bec550c01b4f075f22ab67f5e55ed5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee07c1f2f7b417036b79f165d4fe24c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974f7120f0e29e71f4d918617456c1c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32286c3865f06865920816e7685c497a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b720248e85a39e7ecb4c9baf286e9ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7311691ce4a43c2b6ad1b656801d9c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/586c449d81bee2a8683a3cafef1d6c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7b0182a19d683019a9153294fb7f8e9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/7/520b1b4b-f36b-499f-8760-9ac541aa8d12.png?resizew=223)
(1)请你直接写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a18a7caa080988802ba1145b4fe4203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9f2b482e8a8e0e1b5c720a3574af70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5267ff7ce5aa65879b770aa1990c0a7.png)
(2)在条件(1)下,将线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921f77b35fefb43c706dc387ea23c5f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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5 . 如图,已知在
中,
以
为圆心,
为半径的圆交斜边于
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3880a5dc48fb8e1fb7fb3422b2e85abb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abaeba15f3abdd877bc701af52c5cd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/7/0b362bf1-da67-4565-b8d2-41c46f08485c.png?resizew=205)
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6 . 解下列方程组:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6626125898daa4dd7509b6d1fec5f021.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6626125898daa4dd7509b6d1fec5f021.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9345978f732fb71e694a216bba54a1.png)
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7 . 分解下列因式:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59bd6002332e67d89feeaa703c9b3b57.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e0a00664fd4579ed8f3b1f6c6969f5f.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f880f0383bb9174a2f3c6e769d388a93.png)
(4)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cadd89397b50594e85b4104f92e52562.png)
(5)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59bd6002332e67d89feeaa703c9b3b57.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e0a00664fd4579ed8f3b1f6c6969f5f.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f880f0383bb9174a2f3c6e769d388a93.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cadd89397b50594e85b4104f92e52562.png)
(5)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87af2e00e616b1015118cba2d2496210.png)
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8 . 已知关于
的一元二次方程
有两个不相等的实数根.
(1)求
的取值范围;
(2)若此方程的两实数根
满足
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36dd8cfd462d90a6a249d9cab7c00fa1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若此方程的两实数根
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d22a26f04290fe11aa9a70fdbb5d1ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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9 . 化简:(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ccad0dd330e59b168e935d83f699c51.png)
______ ;(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d10df82b988b43f573871dd46a691f29.png)
______ ;(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc45ec17682e2de6b492bcfa9312a5a9.png)
______ ;(4)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27ef5e6ce7ae4a47c7ed6e10b6eb49dc.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ccad0dd330e59b168e935d83f699c51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d10df82b988b43f573871dd46a691f29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc45ec17682e2de6b492bcfa9312a5a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27ef5e6ce7ae4a47c7ed6e10b6eb49dc.png)
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10 . 如图,数轴上点
表示的数为
,化简![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e701c3c705089fa9a18b60d300bf6ad5.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e701c3c705089fa9a18b60d300bf6ad5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/9/dc906b4f-8e7b-4f0c-b9a8-5bc3cd70a6d2.png?resizew=176)
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