在梯形面积公式
中,已知
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/584a253ad2f3bea19d80fd73a268223c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40fe3f4f514b242457a401b0b5208504.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/019eb94a6a2b38308811470d860e1a20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae96cd3fcb18e7ba8919bdf4aef510a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
更新时间:2024-03-01 22:35:20
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【知识点】 解一元一次方程——拓展解读
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【推荐1】亮亮在解关于x的方程
+6=
时,把6错写成1,解得x=1,并且亮亮的解题过程没有错误,则此方程正确的解为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b0ad5fd0beb7f091703db72e72a696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f784a25e15f5ac9bf1629fcd6283bd.png)
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填空题
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较易
(0.85)
【推荐2】已知关于
的一元一次方程
(
为常数,且
)的解为
,则关于
的一元一次方程
的解为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113035f13e24b385cdac3783d8b052f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d5e806433a8e6e9dafcee9807519d7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098943e98ad321740f83f0bb67004598.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9854e2af2b1fa1a77e5117d83708462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
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