名校
1 . 已知函数
,若
使得
的图象在点
处的切线与
轴平行,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52d458b75c3c5d9078ea50c42f9135ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3691d7e6510dccb66ed928a0d9570e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8559f5db9b978cb2bd290dbce7268629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.2 | B.![]() | C.1 | D.![]() |
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解题方法
2 . 已知在同一平面内的三个点A,B,C满足
,
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae5a64bcb77f5f64e4af6930c249a270.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc98457b4304baf0bca89f6df6c00184.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f917d1b45f16210a509b40c14a9cc0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3 . 已知函数
的零点从小到大分别为
.若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9332b001e589304d3aaac8d0139a75b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d767cba8f37ccd4b40efec40dd430e7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07aa287be7947642c26abd906629dfcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9448bf1d6136b3a108e7ea60506ad39.png)
A.![]() | B.![]() | C.1 | D.2 |
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解题方法
4 . 在
中,A,B,C的对边分别为a,b,c,若
,
,
,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe7a93172d308a58200e3c722fe1072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07abc09e1f0bf5eb87259e3381b3316a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a0d83444a29f1618ed79ad89c1dbae9.png)
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解题方法
5 . 在
中,内角A,B,C所对的边分别为a,b,c,已知
,
.
(1)求
的值;
(2)设函数
.
(ⅰ)求
的定义域和最小正周期;
(ⅱ)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09eebab59213386449a726b75065bf76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a1321c2d0bfa223b176e4e6a1286b98.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721e29b775e696045f44a4b1e7f74ef2.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14bbb30744d9c00e52b9055019ebb4e3.png)
(ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(ⅱ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2231c2f7241d4fb4c48c3105700ea0c2.png)
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解题方法
6 . 下列说法正确的有( )
A.若角![]() ![]() ![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若扇形的周长为![]() ![]() ![]() |
您最近一年使用:0次
7 . 已知函数
,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ca1100b456583c791b802ea0b12cda.png)
A.若函数图象过原点,则![]() |
B.若函数图象关于![]() ![]() |
C.若函数在零点处的切线斜率为1或![]() ![]() |
D.存在![]() ![]() ![]() |
您最近一年使用:0次
名校
8 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9c127fef6f5aa84512b06539c9d77ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e682f8aedfc246f44520781e77d335a4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 已知函数
的图象向左平移
个单位长度得到
的图象,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec27d2122104783eb0e5363724fb7e8d.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/159b8c213a2823d7996bc4f57fd12b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41b6ae6ce67b1e6bacf10a5e163e6eb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec27d2122104783eb0e5363724fb7e8d.png)
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名校
解题方法
10 . 已知
的内角
的对边分别为
,则以下说法正确的有( )
![](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)
A.若![]() ![]() |
B.![]() ![]() |
C.若![]() ![]() ![]() ![]() |
D.若![]() ![]() |
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