若
且
,则
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd2a42109fc83c928ed3f5a72ddbfc2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f5b486f324e00a46245ff6ec4f5e1c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9801cb3b4ea245e076edf2dc57810dc7.png)
更新时间:2023-01-08 14:48:49
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【推荐1】已知线段a、b、c,其中
是a,b的比例中项,若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3320a13248a3a1208ff6ee85c9d26f36.png)
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【推荐2】如图,这是由10个边长均为1的小正方形组成的图形,点P、X、Y是小正方形的顶点,Q为边
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267751d87c3186704eec252cc97d1772.png)
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