1 . 定义数列
:
,令
.则
的最大值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0143b209000b9c65b3932c82693fcef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e9f437a20fe47cd9203400059f182d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e260b088f071983f254ce8f5163fcd.png)
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2 . 已知非常数的整系数多项式
满足
.①证明:对所有正整数
,
至少有五个不同的质因数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f00a1cbe1c4b9d730539f1063ab272c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b96f88ff78d33299bb956eafaa33c645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fcec7af3520884b173b29bda6c657a.png)
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3 . 已知关于
的方程
的两根均为整数.则实数
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82429835efd6c7d1c7c85c5493989bd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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4 . 设
为常数.若对一切
,有
,则实数
的取值范围是____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ff1d3115969f55aa4fdab53ebe202e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f1467617450612fbc07af28f8dea7a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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5 . 已知
在区间![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
上的值域为
.则满足条件的区间
为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64a2c04a35b17bf8912fd692bc24d25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd65012224610a02bbbd084fc5b47407.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
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6 . 如图,设圆台的轴截面为等腰梯形
,其中,
,
.若圆台的高为
,
是下底面与
夹角为
的直径,则异面直线
、
所成角的余弦值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d00be47dcb89793f14a2fd10f4c522b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eca7e1a727ba332984ad857b3d25344d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3525ddc5153fada64eaf14e50b536542.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/19/9d0d23f9-377a-4748-86de-9d248bf81644.png?resizew=212)
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7 . 不等式
的解集为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5c2ef8f26597f4c54ae3535f5d572f8.png)
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8 . 设
、
为复数,
.求证:
.
![](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/4e374e009e283f15788dc7512b6e3ece.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac07ff5fb6ab6411b5c2d46920a3d50.png)
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9 . 直角坐标平面上两曲线
与
围成的图形的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c904567c3b3734e1eca8d042ef7a7b2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d98a71ce58624fc146b79ba4e91e8f.png)
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10 . 实数
满足
,试求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bef2bf79c078519ac33c1355fe7aa8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/876a9292d1d4d892e8540a214737d9b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25504609b0a24dc06cdf843657b4392e.png)
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