1 . 在①
;②
这两个条件中任选一个,补充在下面的问题中并解答.
设
的内角
,
,
的对边分别为
,
,
,且
,
.
(1)求
;
(2)若______,求
的周长.
注:若选择条件①、条件②分别解答,则按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adf5824ef0f3eecee36a80b5993f448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427507ff8cd67d534e6647a73b49f0f5.png)
设
![](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/09e3470df072551cf80d004ef52c91c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若______,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
注:若选择条件①、条件②分别解答,则按第一个解答计分.
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解题方法
2 . 已知函数
在R上连续,且存在导函数
,对任意实数x,满足
,当
时,
.若
,则x的取值范围是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c9333496d9d516dfff9a8f79b0b25d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58e82c4003d20b36777f7aea584e3dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07370085c170b6e5cec19da627a3d58c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/377fc3bdedde5c9283e6e0d1dc205d41.png)
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解题方法
3 . 在
中,三个内角
,
,
所对的边分别为
,
,
,且
,若
,
,则
( )
![](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/f7ed7256de21ed91a2be967a96888600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
A.1 | B.2 | C.![]() | D.4 |
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解题方法
4 . 下列函数中,以
为周期,且其图象关于点
对称的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de6d1af1984f890f1b9bd7dd2a1ab30.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
5 . 已知函数
,角A为△ABC的内角,且
.
(2)如图,若角A为锐角,
,且△ABC的面积S为
,点E、F为边AB上的三等分点,点D为边AC的中点,连接DF和EC交于点M,求线段AM的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c2a82f4820d3ffdd52f152c69a70872.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbacffbd6184d83356dc34290522529.png)
(2)如图,若角A为锐角,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7cb903441d8e6b4448c3d5d7959d9d7.png)
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解题方法
6 . 已知在
中,
的面积为
.
的度数;
(2)若
是
上的动点,且
始终等于
,记
.当
取到最小值时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8d80664a665cbdff97f0c2c47541d71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12c3a75358a870c58549cf88b82fcc18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1384d0a02d097ac7aa8a19e8da6f9767.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6b86c22b670a8e9f3896f9e8883fbbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d4538fa852e0f4961d442e9d5b96a69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
名校
解题方法
7 . 某商场零食区改造,如图,原零食区是区域
,改造时可利用部分为扇形区域
,已知
,
米,
米,区域
为三角形,区域
是以
为半径的扇形,且
.
外轮廓地面贴广告带,求广告带的总长度;
(2)在区域
中,设置矩形区域
作为促销展示区,求促销展示区的面积
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0947161887af7b78afde80c0cd647d58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d276b69c758da6bf9e2fb7f63130bd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ab51246d895d2a255f3314c853000ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdcc8f70e441df3433765f5218c81c8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ebb33adb2310a6e03918761e68204a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb802b0cd77d772dceff0d9ff6c879ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4819c39c281427826e1b3f7a4c2b720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81cbbac19ce207b72c990195854f6fa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3241d7fedd89d85711acd7a2635298af.png)
(2)在区域
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d276b69c758da6bf9e2fb7f63130bd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e5c1767a5719a03062ebb0fc5067b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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名校
解题方法
8 . 记
的内角A,B,C的对边分别为a,b,c,
,则角
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/056c511ce749bdb7b0ead815aff8afe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26308ea6d8f321d27acbd7f9b131f9f1.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
9 . 在
中,角
,
,
所对的边分别为
,
,
,已知
,
,其中
为
的面积.
(1)求角
的大小;
(2)设
是边
的中点,若
,求
的长.
![](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/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0658b38807dee29bef6899e2d428c03a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
7日内更新
|
852次组卷
|
4卷引用:江苏省南通市如皋中学2024届高三下学期高考适应性考试(三)(3.5模)数学试题
名校
解题方法
10 . 已知
,
是函数
的零点,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9c1f914da4657eca7865982b130b299.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d75442a901f013aeb5c52a7113ae9b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c487295d441397ea078d433e61087cec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a91d7fa3be7708a277b8a836c5af89.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次