1 . 设常数
,函数
.
(1)当
时,①求函数值域;②判断函数
在区间
上的单调性,并证明你的结论;
(2)根据
的不同取值,讨论函数
的奇偶性,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a6fe56c70ed96e7f0ee48063dae9fc7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cda591d3909af06eabf6b37c65bfe571.png)
(2)根据
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
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解题方法
2 . 已知角
是第三象限角,
,求下列各式的值:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7510e3e81eaae5ee85cb1ed7043b6ca.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c448143f583acca95cc90cdc403baaa3.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/613ceac0ff6dfc656ff71cb099a9e120.png)
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解题方法
3 . 已知点
,
,且平行四边形
的四个顶点都在函数
的图像上,则平行四边形
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a6d861cf80bd971be02918cfa58cb76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d6ea89ac89df0bb030859d178c3595a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac56c56432bda6201a06c602234d1901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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4 . 已知数列
为等差数列,设其公差为
,数列
满足
(
为正整数).
(1)求证:数列
为等比数列;
(2)若
,
,求数列
的通项公式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6574b44a3f8e46d987efd602f98ada93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(1)求证:数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cabe8a74ff165189787a700857acf64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3ff57a2cd32a8a6beaa8dc62dac0536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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解题方法
5 . 若函数
,
为偶函数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c91434462deef72d6dc0e1937ce39ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e0d604ef6a22f8243e8c02c5c8d8e91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892560dcff6af9f66a3f735652f69dd7.png)
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6 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
______
.(用符号“
”或“
”或“
或“
”填空)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e581739cffb5676d997a58ab10d58880.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b962513da65bb5d391d58d16a7a42091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02aa4d15acfc6884e0c41a56450fcaf9.png)
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7 . 已知
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5215a578933ba72022450a6d3a37d14.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd81c4d53f2c07d81de21a9871200e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40747e10c4b1af1f0dcd4ba16e1327f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5215a578933ba72022450a6d3a37d14.png)
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解题方法
8 . 已知全集为
,集合
,函数
的定义域为集合
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67c400ea671bd1cfbf4dc6a155321c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9493f278590f8c36489d0f0ee7a1e8e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82fd1ee756ac1b0f950c0f6a2bce3178.png)
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9 . 已知函数
,若函数
存在零点,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb38bec0ec3472ec533afc3ac7e9e953.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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10 . 已知等差数列
,
,
,
,则该数列第5项的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d13ce3ebd1112220c639562739f1f9d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3aab28a20b5bf47040aaec03b1eb550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77424dbdd740737b4ec75d62cdd08b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
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