计算:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af75ec0226716af52e655ae3135f1836.png)
更新时间:2023-08-02 10:20:55
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解答题-问答题
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适中
(0.65)
【推荐1】如图,平面直角坐标系中,直线
交坐标轴于点
,点
,且
,平行于
的直线交坐标轴于C,D.
的值;
(2)
的角平分线与
的角平分线相交于点E,求
的大小;
(3)如果点
,直接写出点D的坐标 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4b9486ec9dca95979803bf91ca6c337.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa6e5a12543f954be1a6057c6b2ed51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55cc79b63db4d8415d23d6b52046ea01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabbc1f7e736a9f4e0260d6058e46be9.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb8eca20ce2c918ea4034ea15210c7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/246a86f34603eaf2e6a948681b831b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6282292819434a8905a212427613fd85.png)
(3)如果点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/205e468a82a5cb7b2a31456c5fccf85e.png)
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解答题-计算题
|
适中
(0.65)
【推荐2】计算:
(1)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46b3a242d6660600e3b290cc339f71f5.png)
(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09af92b7926d6c19fa0b21ac6232876b.png)
(4)若a,b,c为直角三角形三条边,且a=3,b=4,求第三边c的长度.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f620ccd2944e76f173068c963f80f6c0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46b3a242d6660600e3b290cc339f71f5.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09af92b7926d6c19fa0b21ac6232876b.png)
(4)若a,b,c为直角三角形三条边,且a=3,b=4,求第三边c的长度.
您最近一年使用:0次