题型:解答题-证明题
难度:0.65
引用次数:59
题号:19762053
完成下列证明:
已知:如图
,
,
求证:
.
证明:∵
(邻补角的定义),
又
,(已知).
∴
(同角的补角相等)
∴
( ),
∴
( ).
∵
(已知),
∴
( ),
∴
( ),
∴
( ).
已知:如图
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1717b5311ed602f1730e86d9322647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1598ad60d36f87f7fed1a58cf5c2c42.png)
求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27f77e13dd7e3675757d648b74c1c94.png)
证明:∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abe814116439591bec2a1a9416934c3b.png)
又
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1717b5311ed602f1730e86d9322647.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc310194575262fb45352c2fbc19868.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab8099c774a6ae6dd98712b0b90b60cf.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5324ce5fd43c5b05e8fad764880f7b3.png)
∵
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1598ad60d36f87f7fed1a58cf5c2c42.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afde09d82ae96f00c135732baee64776.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c436f108fd4921dae15ecff19270237e.png)
∴
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41db498f025052df2dbb1e50ab672675.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/3/32f5e09e-4c8e-4e8c-8db8-a930d984fbf6.png?resizew=142)
更新时间:2023-08-02 10:20:55
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