已知
.
(1)化简
;
(2)若
为第四象限角且
,求
的值;
(3)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f6e69eba90d436c90afd5e7853ee3a.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d33658e09092e727b0035825036fc8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61aba67d8c07b45d43f817b069e8bc8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
22-23高一上·山东菏泽·期末 查看更多[2]
更新时间:2023-01-15 15:07:40
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解答题-问答题
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(0.85)
名校
解题方法
【推荐1】已知函数.
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e5c9dd749202f50f605cc804bedbe1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f84a25527e54ee2614e3b5e99ef8a3d4.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36183977fcdb1a87a5c7cef17133e6d.png)
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(0.85)
【推荐2】确定下列各角的正弦、余弦、正切值的符号:
(1)885°;
(2)-395°;
(3)
;
(4)
.
(1)885°;
(2)-395°;
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d82a36e5d5cd1b6b26433fdda2bc2af1.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ad0762df2e86af61058d1081289881b.png)
您最近一年使用:0次
解答题-计算题
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(0.85)
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【推荐1】已知
.
(1)化简
;
(2)若
为第四象限角,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1d6ad4f2b0f222e6bab63f5d3b54a81.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ba6b6ee00c4b2763cb3fa59caa69f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7cdfb87468f4af5119737b427afe8ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ba6b6ee00c4b2763cb3fa59caa69f.png)
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解答题-问答题
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名校
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【推荐2】(1)已知
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(2)已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/573e1c0d7cedbd7581b8401d64fdba44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd5bdcb047bcf0609a8bc0c413af07e.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e7c0c5f070e3f91426270a7b9bd8e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
您最近一年使用:0次
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【推荐3】已知
,且
,求
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的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833761c35ba09568134dc5246f547ffe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a55ae7d387e6540a5d12ef870a930802.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/677ff28e831e00633bd3436917738b20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2299ba5cf99190839081e3ccd0908cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c8d3ed07ab17b305b30bbd11c8afd09.png)
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解题方法
【推荐1】已知角
的终边经过点
,
且
为第二象限.
(1)求
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd58f54e9659a9cb5964a2d48f539e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a729bdd594a6583588d8d695d2ecc70d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bae37e7df598efb7b59f726ce34e25c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a78f437c6200129b76a454611b816f9.png)
您最近一年使用:0次
解答题-计算题
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(0.85)
名校
【推荐2】已知
.
(1)化简
;
(2)若
为第四象限角,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcdfd6aa63cf3dada6dede7cb29917d1.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5224a7da7fe6bc28971ce4c277f88588.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94900c8c3682104cb53e5b4877ab0338.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5224a7da7fe6bc28971ce4c277f88588.png)
您最近一年使用:0次