1 . 已知
,
.
(1)求
的值;
(2)求
的值;
(3)在平面直角坐标系
中,以
为始边,已知角
的终边与角
的终边关于
轴对称,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bc052a11cf1a01445992672dde2836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7223bf3fdadd6f44abce82899bc1ec1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/798e66272a748ba5cb25316572be95ba.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4bbb92a13e855b2d3ad6ee7666fb1a4.png)
(3)在平面直角坐标系
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/323b74b1e7d8a89188b2dfc5d0bc30ec.png)
您最近一年使用:0次
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解题方法
2 . 如图是构造无理数的一种方法: 线段
; 第一步,以线段
为直角边作直角三角形
,其中
; 第二步,以
为直角边作直角三角形
,其中
; 第三步,以
为直角边作直角三角形
, 其中
; ...,如此延续下去,可以得到长度为无理数的一系列线段, 如
,
, ... ,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780236b507e42bf180d15faca13d9478.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee5747ae1c372be1170242c4aecee5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4195334905e2f190f958dbf5951456f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c42451af24f0fd7dba027b7982ee7d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92777fd37c34b8747686db17b0098419.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c76916c6ff302cf4fb4b6ace5bb3a95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae5b7c627e5932a413b34ff3f597b5ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1ba4bf41f103d2b8973840ec472938a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/181f7b988095b7285557491c7bb2fb5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23de2a59f81db67daf4f44b51771b9aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce7365cf0d1e0f5460dd26b4122345b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c76916c6ff302cf4fb4b6ace5bb3a95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/181f7b988095b7285557491c7bb2fb5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780236b507e42bf180d15faca13d9478.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/10/8150aec8-ba3b-435c-8d6e-bd131db2c114.png?resizew=199)
您最近一年使用:0次
2022-09-08更新
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1134次组卷
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6卷引用:河南省漯河市2024届高三上学期期末质量监测数学试题