解题方法
1 . 下列函数中既是奇函数,又在区间
上单调递减的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
2 . 已知数列
的前
项和
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c0f2118f2771a5a347f7dab243417ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13e2674f42e924b9791db9c35f8d312e.png)
A.60 | B.62 | C.64 | D.68 |
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3 . 平面直角坐标系中有
四个点能否在同一个圆上?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437624f9b8c516f5d081867d479ed3b8.png)
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4 . 圆
和圆
的位置关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce807a9076837a8069e0a66a8c7fadf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c99fd44ea14ac1cf7707062a5a6debd8.png)
A.相离 | B.相切 | C.相交 | D.内切 |
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解题方法
5 . 设全集
,集合
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465524dc9d3ce616032fc2a59bf14f60.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddd5f1d68a4054a2678c1402da9dbea4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70da2da7512606299eb9666d4c6f1764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613aad6f482efbe4ad3255d0fc0b6564.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/465524dc9d3ce616032fc2a59bf14f60.png)
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解题方法
6 . 设函数
(
且
), 满足
.
(1)求
的值;
(2)若
,求使不等式
对任意实数
恒成立的
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/927fd23191596dbb6724ccd47860d1c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01bea8bf593f594c51fc7cc547482bee.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41f3df8bf24d2c68add3f3de3efc4147.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2328a59afeb59ba523770a743b9eb15e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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7 . 已知函数
(
)的最小正周期为
,最小值是
,且图象经过点
,求该函数的解析式并求其单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec89c3bc454d209007c2b29baeeb3b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/021bb77dea79a008557b55c94fa1da10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0211da37e92f915e781691296578ba0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4d5bb2305b8be93d8c1eb2f4634d9ae.png)
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8 . 将93化为二进制数是( )
A.1011100(2) | B.1011001(2) | C.1011101(2) | D.1011110(2) |
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解题方法
9 . 已知数列
的前n项和为
(
),等差数列
中,
(
),且
,又
成等比数列.
(1)求数列
,
的通项公式;
(2)求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09f3cc1f87b55c1bb6a920c8221b29b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0dd3fb6af23def773e1b0032a4f3c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/099585c6dd7df5ad7b75cfcb68db7676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8491922ccb3c5882bdd6d467a9880ec.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c394d7bd6be49f089aa78d2d4fd0a9cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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解题方法
10 . 在
中,
,
,则
的长可表示为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e899c486dc49e560fc4aca05e16835b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6d831223c3c4ae2ee718118f97a06d6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次