已知函数
.
(I)求函数
的单调递增区间;
(II)在
中,角
,
,
的对边分别是
,
,
,且满足
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32e377e51d0ac3a073c9258e2a11447.png)
(I)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(II)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](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/1c0b2d8eca257d11f83121eb1662dbfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b2b9f4a56eddb8729daedaa14205852.png)
更新时间:2021-10-19 07:43:06
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解答题-问答题
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适中
(0.65)
【推荐1】已知函数
.
(1)当
时,求函数
的单调递增区间;
(2)写出函数
图像的对称中心坐标和对称轴方程;
(3)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b7c5bc2082e99898afc4faec4f45f4c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dc29e82c62fb3b8d94138e2ed04970a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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适中
(0.65)
【推荐2】已知:
,其中
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27ed6cf99141a548fcf9f5987dbee5cc.png)
.
(Ⅰ)求
的对称轴和对称中心;
(Ⅱ)求
的单增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3358b1c71366a6d65e181a29ae3bf4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b1013d36b984a11ac50290d3029dbc4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e35ae752d6f10d9bce28926a52ea580b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27ed6cf99141a548fcf9f5987dbee5cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ca882745327fca2d2317b3de62ead1.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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【推荐1】已知函数
.
(1)设
是函数
图像的一条对称轴,求
的值;
(2)将
的图像上所有点的横坐标伸长为原来的4倍,纵坐标不变,再将得到的图像向右平移
个单位,向上平移一个单位,得到函数
的图像,求
在
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c61c93bfd09d5ad08d8fb9845fbe9f5.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11abb76da45ffa52b47c3a6b9a03ac7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d0532bf8ea573af0bc5bbda9e52154.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa662f0273f0921c1fa4727f632395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0211da37e92f915e781691296578ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f5a90aeba435af22d6bcdb7b91650b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f5a90aeba435af22d6bcdb7b91650b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55cfcbb5c5950e18a8452b38bb17036.png)
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解题方法
【推荐2】设A是单位圆O和x轴正半轴的交点,
是圆O上两点,O为坐标原点,
,
,
.
(1)若
,求
的值;
(2)设函数
,求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45bfbe5e1743c4b1379c325c5738b944.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97eb01256e332c3967c7102e3724a08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e858ee54cb7e7510eff5cabe51f7f4df.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57857c63625e81dc0f1c4b62fb1a552e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4374471d24e86c6f55aa7f6886ff3302.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1daf92633741e2bd323d9698d234efb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ba6b6ee00c4b2763cb3fa59caa69f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/23/b3227108-fa80-4948-9126-fa0a7df4ee9e.png?resizew=122)
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适中
(0.65)
【推荐3】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a616951993fdbf9344383e942c83cc2.png)
(1)求
的最小正周期及单调递减区间;
(2)求
在区间
上的最值;
(3)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a616951993fdbf9344383e942c83cc2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d58d39c54e3749e2adac8cd481ad9250.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ba150f6799de4aadf957bf229e8197d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f112867b48f58d7af94f3a073b5ce14.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
解题方法
【推荐1】已知函数
.
(Ⅰ)求
的值;
(Ⅱ)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db1dbbca8970f4b431496d2809a3b2f7.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e2c06b9a50cab76f39068559a91afc.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d32a888049a802480e939140a5e2e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eeae4e4940d654f083f1073ba872504.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
您最近一年使用:0次
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解题方法
【推荐2】设
.
(1)求
的值及
的单调递增区间;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff479265ae2b110c98949b7055967c79.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d15b006dd591aa4e7a88caf9bd05306e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcbe8b4bcd32e5a64ebfd873f8cbb2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1400da0f64d71dbb7c75c75f75374438.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0efb7bdf4e86c8747f4e1cf18b8b795.png)
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【推荐1】已知
的内角
的对边分别为
,且
.
(1)求
外接圆的面积;
(2)记
内切圆的半径为
,若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46d46ec998dae6ffde43e0aaae786b6e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20f31e1ae9d5670dd71be7c1cf223566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
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解题方法
【推荐2】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37600581bb27f21877e8ccc755fcdcdc.png)
(1)当
时,求函数
的最小值和最大值;
(2)设
的内角
的对应边分别为
,且
,若向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7a1df960feef63dec4790d63f52279.png)
与向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8a88a16125366536cb4ad658e0cf1.png)
共线,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37600581bb27f21877e8ccc755fcdcdc.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7c02143be07f7f980c4a2a3bb37b87e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3138d5af702eaed893ae384c4cb56e03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7a1df960feef63dec4790d63f52279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0624802d90318d25f2e9803166b079e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b8a88a16125366536cb4ad658e0cf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ba11325e4fba312b75e4190c2395a14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
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