已知方程
的解也是关于
的方程
的解.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/30/ed7d58ce-26ca-4756-a892-930d901d66f9.png?resizew=191)
(1)求
的值;
(2)若线段
,在线段
上取一点
,恰好使
,点
为
的中点,求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ad186a7e9d69694fee004dd404c2890.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6559464390dfd3c9cb45c4c35ae52796.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/30/ed7d58ce-26ca-4756-a892-930d901d66f9.png?resizew=191)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)若线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad6231699918fd81f272aa051bd2dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
更新时间:2022-09-28 20:20:45
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解答题-问答题
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【推荐1】若关于
的方程
的解与方程
的解互为相反数,求代数式
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf74d8ad6b40e141094ea1910874f97d.png)
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【推荐2】检验下列方程后面括号内所列各数是否为相应方程的解:
(1)
;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c2718d3c601c599079ac8aa351ae16.png)
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c19735074286e591572b699f070e13e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c2718d3c601c599079ac8aa351ae16.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ebf2868e79bc7b6d5104983294aac06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5431d08c95587166f5ff01ffc8036b0.png)
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【推荐2】(1)已知
,
,用含有
,
的代数式表示
;
(2)定义新运算
:对于任意实数
,
,都有
,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f8563c85aeea2172bdc2be0f6c3e872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2b9c7813c54767789912a850f79d12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e52806ed5e3f9f1527169c0558f2e6.png)
(2)定义新运算
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e16415b61722f9961e412386e6819f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63408d0ddda5279e0ae3b2b36730c87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e913f6d8dfb200b6adecd50c831c295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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名校
【推荐1】点
是线段
的三等分点,
是线段
的中点,
是线段
的中点,若
,求线段
的长.
![](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://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65ff13b4da65c7da3d898ba58e967b24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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解答题-作图题
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名校
【推荐2】已知线段
、
,且
(如图),画一条线段,使它等于
.(不写画法或作法,保留画图或作图痕迹)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4887473a8091e1ef53a169cc9f211e3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2fdeba282b028321696be7f90f2cbfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9e24b5227f9cde37c43a4ec28eda000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715791cc26f791695c439e6fdc834ca2.png)
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【推荐1】如图,
、
、
三点在线段
上,
,点
是线段
的中点,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/16/76a7a22a-f45b-43a0-a11b-787781c03ea8.png?resizew=225)
(1)求线段
的长;
(2)求线段
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b05aa3ab8d5cbf9bedb6492817ce4178.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a847dc35ff262a3c4a9a84174da8e13.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/16/76a7a22a-f45b-43a0-a11b-787781c03ea8.png?resizew=225)
(1)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)求线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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【推荐2】如图,点A、B、M、C、D在一直线上,M为
的中点,
,
,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9a61d756a4eb2913484fbb2a5bbe0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a8b01dec754227eb609e85012a2a6a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88929f4ba0851730d5f941d426b87548.png)
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