(1)已知
是方程
的根,
,求
的值;
(2)已知
,
,且
,
,求
和
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e607ee0861bbd40715aa853be01c339b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612fd36aeb83099c4644c076db691612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a35d53ca09e6c6af4057a3444665bdd6.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1c6a858b9f66115519d9de6d87ba5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/343fbf75a2f94553bd8fe8977c846678.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a135466eb8ca64d002d0fad36176d1c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a1c6f686681d7640cd71ed82b9f07e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
更新时间:2023-12-23 09:35:42
|
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解答题-问答题
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较易
(0.85)
名校
解题方法
【推荐2】已知
.
(1)化简求值:
;
(2)若
是第一象限角,
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a7de5b70003502e40b95b3b7d3d933.png)
(1)化简求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e42b0988b6a77308e1c40b5c7952286.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a009ce821e3add1f56315dd54826307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3021f9719c6a631749fee36955628ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2f0e600535277a425ac7f16317b12b0.png)
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