在
中,已知
,
.
(1)求
与
的值;
(2)若角
,
,
的对边分别为
,
,
,且
,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065c64706cc4a805957318f6c6f195d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5dda3f275f8e2f6cf96f7ff5997f98d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab839d8569171afab5ed55c22013aa72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
更新时间:2016-12-03 13:16:52
|
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【推荐1】已知
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名校
解题方法
【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde0d5bc29f69be4f871f41081f9daee.png)
(1)化简
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(3)若
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的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde0d5bc29f69be4f871f41081f9daee.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/794f2c6bd63355105d179d11306a9cae.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d501b3615e54f7e36f104ebfb53172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a282d19bf2c827a98d4443330f7ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6b7e2413dc62b774d2623ad46663e37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccb8a3b707bc858aadcd9e2f16e88b90.png)
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【推荐1】已知函数
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,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ee4ba711a9814f0e4c201eda2d49100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c863b4be465ca123e8bcdc0b55d4b968.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d51992c05a557cf6058664f1f8961e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf114f55b6199e4ca03efa0c9d36291.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b97edac3bf071423b789a52673237ede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f97408c4212ad3cc4f34bf28604bd9.png)
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解题方法
【推荐2】已知在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd6e3ce2d6633bdefbd565e812c04aab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3007843675799e84956a6c49169b55f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5201fc26d013f6fb889933c0e32f5c53.png)
(2)若点线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5e2fca8dc4454f19da64d6a8137feb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4916262b8025f0ef8935c0f45804b350.png)
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【推荐2】在△ABC中,角A,B,C所对的边分别为a,b,c,且
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(1)判断△ABC的形状;
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![](https://img.xkw.com/dksih/QBM/2018/10/29/2064095459819520/2065395515072512/STEM/d1f952bcf1ad4e339c26e9e9ce474c51.png?resizew=117)
(1)判断△ABC的形状;
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![](https://img.xkw.com/dksih/QBM/2018/10/29/2064095459819520/2065395515072512/STEM/6ca7cc3136fc498d9fed871be23f5b1b.png?resizew=130)
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