解题方法
1 . 已知
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9fbf538ae87b660c3a3424729b55d61.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c6a96b2ff7e31fc9118b2a6a5182425.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/624897965c5f133b85d6a6e9601b5d99.png)
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解题方法
2 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f7041432dd8e5a1d495c7a9aeced52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/145e09a80b0a043faaed596381e1ca3f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
3 . 计算.
(1)
;
(2)已知
,求
的值.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b12b102bca69f24a54bf3ee35a577f4.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8243953e45f9db416d64b444b259b02b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee2c23496182da076d48e54518555fba.png)
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名校
解题方法
4 .
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9e8c68b808317e3fd4959edbc75769.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b3a1ae28aefbd5938dff3d827812861.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9e8c68b808317e3fd4959edbc75769.png)
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解题方法
5 . 设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e976891142f43f8b63cbadf4a040fe.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d246a6f180e720e0f9761d7a757c0647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15e976891142f43f8b63cbadf4a040fe.png)
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解题方法
6 . 根据下列条件,求角x:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64b79e4a88c639c1043992dcd0aa6fb6.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669cace479793cdadf83b04f81f81a7d.png)
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7 . 已知
,求:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81d7acaa3fe60e42621516fce4d12768.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cebe06d0c9ffa4bdd7ed79dfbe1b19fe.png)
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8 . 已知角
的终边经过点
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7c509fb6a1fa3ae9e4bceb3fc2dc08b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f13c822f5e08f185b4f04e643a5cde0b.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70a02bdc8a3a989baeeacfb5d739812b.png)
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解题方法
9 . 已知方程
(
)的两根分别为
、
,且
、
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6183751a0e217275823b35f5e9efc822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f35152720e43c6403d43bef47c0377d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65836acb59c11d8c25bee00d0839823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fdb383fd6812ef0b2127256bbb5c1b4.png)
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解题方法
10 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52cb035536e01429970c3370fc471f64.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51474d91e540a475138571e8738de850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52cb035536e01429970c3370fc471f64.png)
您最近一年使用:0次