解题方法
1 . 已知函数
,其中
,__________.
请从以下二个条件中任选一个,补充在题干的横线上,并解答下列问题:
①
是
的一个零点;②
.
(1)求
的值;
(2)当
时,若曲线
与直线
恰有一个公共点,求
的取值范围.
注:如果选择条件①和条件②分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a30a688a5b6416c88fbe380547b4eda2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7c9e46448bc791c441ca02d8f4508eb.png)
请从以下二个条件中任选一个,补充在题干的横线上,并解答下列问题:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b61e73c2ecd98d278404b688654b3038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6655b87249f9947fa19231fa175f6bbe.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd65d7c5e979706d391163aee2c18cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4d12362d4b8dd25813953e1c5a94b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
注:如果选择条件①和条件②分别解答,按第一个解答计分.
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解题方法
2 . 已知
,
是方程
的两个根,则
( )
![](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/41527a0e6cee74e1177777a168ec81de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d3f63876e1acd43361f3654db6ab388.png)
A.![]() | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
名校
解题方法
3 .
的内角
,
,
的对边分别为
,
,
.已知
.
(1)求
;
(2)若
,求
.
![](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/7846a69a0078186ff0861f7e67dc9bc5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a04daf539c12d36b1d69e91fb83ef10a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
4 . 已知函数
,
.
(1)当
时,求
的值域;
(2)若
满足
,且在区间
上单调递减,求:
①
的最小正周期;
②方程
的所有根之和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ec9ac8226798af4650e7f0a201d81c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c05a467ddaa138590b3b56615c2c42a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b893f77c9b101506a58593f2a56cafe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad0b6db26f3e7491296108908e0f0c05.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7281045a06135042e28fbf0fba23bbbd.png)
您最近一年使用:0次
5 . 已知向量
,
,且
.
(1)求
的值;
(2)若
是第二象限角,求
和
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d81de584aa4812c31186534376b516d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22f267ac571de30cdc3c00fd6522a9e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf21fef3026cfe445a855c94cab5c84.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9e8c19cd8492218f93ce4692f852f7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25022715befa13f6f06700e960f7657d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f90c4754e6b6fc862d72943fb35569.png)
您最近一年使用:0次
解题方法
6 . 在
中,内角A,B,C的对边分别为a,b,c,且
.
(1)求角B的大小.
(2)若O是
的内心,且
,
,求AC和BO.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3b3936fd093e2caba3df2dc34785201.png)
(1)求角B的大小.
(2)若O是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01cd2bf7c88e24c91625e0f20ba2a4bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636abb06d98c1df226959713c3e0a30d.png)
您最近一年使用:0次
2023-07-14更新
|
233次组卷
|
3卷引用:辽宁省朝阳市2022-2023学年高二下学期期末数学试题
名校
解题方法
7 . 在
中,角
所对的边分别为
,__________.
在①
;②
这两个条件中任选一个,补充在上面横线上,并加以解答.
(1)求角
;
(2)若
为锐角三角形,求
的取值范围.
注:如果选择多个条件解答,按第一个解答计分.
![](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)
在①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c1294446941e1da5b2bd1f7d2ca2e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638b21db8aa536b1faa63587b0422fda.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/506f9aa1f8d9dc0267ebad73616b3015.png)
注:如果选择多个条件解答,按第一个解答计分.
您最近一年使用:0次
2023-07-12更新
|
769次组卷
|
5卷引用:辽宁省辽阳市2022-2023学年高一下学期期末数学试题
名校
8 . 设
,若
,则
的最小值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59f07029c97c324d32f258f18a96654a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3865838ac7113284e143febacca92107.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59dd9042cf85411bb0b27c49d76f18e2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-06-08更新
|
519次组卷
|
2卷引用:辽宁省抚顺市六校协作体2022-2023学年高一下学期期末考试数学试题
名校
解题方法
9 . 已知
的内角
,
,
的对边分别为
,
,
,
.
(1)求角
;
(2)若
,
,求
的周长.
![](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/cb2c6d65e4fd7fa0745e9dceb75721e9.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/680f5d2533547bd9302a8caf496f4b88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-05-14更新
|
818次组卷
|
5卷引用:辽宁省沈阳市郊联体2022-2023学年高一下学期期末数学试题
名校
10 . 在锐角
中,角A,B,C的对边分别为a,b,c,某数学兴趣小组探究该类三角形时,得出以下四个结论,甲:
;乙:
;丙:
;丁:
.则上述四个论断中恒成立的是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a575989aa958895740efec792105947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b18f02785ed9f454cf3ce2b365ac04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d36bf49f2ee1ea8a01bd166aadced21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbce802fea33b184885dcf006ef01e48.png)
您最近一年使用:0次
2023-05-14更新
|
260次组卷
|
2卷引用:辽宁省沈阳市郊联体2022-2023学年高一下学期期末数学试题