名校
1 . 函数
(
是常数,
)的部分图象如图所示,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8665842489bc1b588fa43d34730fd1d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b651c83ed280b34e1144bd7b22dd04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14fd82a003d2169031a410c5aa7cce0.png)
A.![]() |
B.在区间![]() |
C.将![]() ![]() |
D.![]() |
您最近一年使用:0次
2 . 如图,在四棱锥
中,
平面
,且
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/12/3318f51d-dcfa-438e-bc54-a8b9f2d56ee8.png?resizew=155)
(1)证明:直线
平面
;
(2)求平面
与平面
夹角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd4fd4b7a4d6b8ca0c5827c055a9ce7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68123a3e816c431f119e3234f75d9ec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7c4762381fa5fb173866d31b749d09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f440ed925c091b98ce01035dbab8e72b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/12/3318f51d-dcfa-438e-bc54-a8b9f2d56ee8.png?resizew=155)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a5928c98b341b16d4b5a5b931d2929d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
(2)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0628681907ac8d7fdb94d8bc1b15feb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
您最近一年使用:0次
名校
解题方法
3 . 在平面直角坐标系
中,角
以
为始边,它的终边经过点
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aec59ce2c7c657f18318484c3b79137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06d7258de3ea69c206cd1425a8caf1b6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
4 . (1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8415e0f7e41019c1a108e0dbaee10bf3.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/780bde93d414172792766cec9484c397.png)
您最近一年使用:0次
名校
解题方法
5 . 解下列不等式:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6d1e6941c2c0c9f1dc54ba8e4817970.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ced9f0737869840fa4618662ede8ece0.png)
您最近一年使用:0次
名校
6 . 若
且
,则可以记
;若
且
,则可以记
.实数
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf13332b32a846c4b0d76c4a41724fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b02b79e4546cb8ace8300116f3bce7c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe6d009b9ce3934923882ba6e44db70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6429783ab491d999a8698dd3562aed7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4f2a42c9ad8227eec0904b27e2240c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a461bf4e6ff8bc12fc81f0e89ee36c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fead39478c4d958541b584cf8e35bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c28459024511e40e194fe89e5c8eddb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad319ecfd5176485f778566f04fdf573.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
7 . 给出如下四个命题正确的是( )
A.方程![]() |
B.椭圆![]() ![]() |
C.抛物线![]() ![]() |
D.双曲线![]() ![]() |
您最近一年使用:0次
名校
8 . 已知集合
,
,全集
.
(1)当
时,求
;
(2)若“
”是“
”的充分条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4680f41433a68cd65e6656a6b0d23592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d93354567c311cde284857059a254b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dc8098ad6f31bdd87771ca9cfa33a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bdcf4794e2c80fa3d88cd46ac5b6905.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
您最近一年使用:0次
名校
解题方法
9 . 已知函数
是定义在R上的奇函数,且当
时,
.(
是以e为底的自然对数,
)
(1)求
的解析式;
(2)若正数m,n满足
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c1ebf490f9eb1d40a4a11cb37fd4b99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4c7d5aee3615cdb65b3dd4e24da7bc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11204e2fb6e560bf7a4ca26eaebfc526.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)若正数m,n满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caee77d4821d513c99bce6dc2b94b899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46ea0f72ba83ccc556291b5fe6de228e.png)
您最近一年使用:0次
名校
解题方法
10 . 在4和67之间插入一个
项的等差数列后,组成一个
项的新等差数列,且新等差数列的所有项之和等于781,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3468a665ac713ab7b400c672f19650a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
您最近一年使用:0次