1 . 方程
的所有正整数解![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/479c55fe425af8710f900f6e1346f447.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
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2 . 方程
的实数根的个数是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb26691dac3fc970fef42200165378e7.png)
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3 . 已知正整数
、
均小于500,且满足
. 则这样的数对
共有______ 对.
![](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/429a0414e3bb2ce87aacee984ba7cc2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
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4 . 假设地球绕着连接北极和南极的直线为轴自转一周所需的时间是23小时56分4秒,又设地球的赤道半径为6378.1km. 那么,当你站在赤道位置上随着地球自转,绕轴旋转的线速度是______ 米/秒(精确到米,
取3.1416).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
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5 . 设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877b03da08ff97027d112522b39a60f0.png)
______ (精确到
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63b444f47870bdd2858adf3daa2323cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877b03da08ff97027d112522b39a60f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd1eef8a3ebb42b5281235fa25a1cfd9.png)
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6 . 天文学中,常用“秒差距”作为距离单位. 如果在一个
中,
,
,即边
的长等于太阳(
)与地球(
)之间的平均距离,那么,当
的大小为1秒(1度等于60分,1分等于60秒)时,斜边
的长为1秒差距. 由此可知,1秒差距=______ km(用科学记数法表示,保留四位有效数字).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42798067d911f96e5784cb138319c907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82da6815bc213dfd78c2f77cd7ded8ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb65e1fa7afc46330239a188a8d9f52a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/971b23e3ee827018557d6c88edd5369a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/146a63bac5ecd239f2696801e8eaa0b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
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7 . 设正整数构成的数列
使得
对一切
恒成立.记该数列若干连续项的和
为
,其中
,且
.求证:所有
构成的集合等于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29518f13a1ebc3fff8181c2d7cfba22f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc739ce1d7e20e7bd1901aecffe43d17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/617b1e11007c44bc4a19326d587f8106.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1738c506ee74e16b33e86ea0c71bb601.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b85ee7a16a8e2b8aaa8a86b1eedc0537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/436f77893bbdda167b0d9611271b1c74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f21334a2bd0ed1f59a7ab0e3d324ee60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b85ee7a16a8e2b8aaa8a86b1eedc0537.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b60044ffdc3a8cccc6821be8d9c3798.png)
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8 . 设
是集合
的两个不同子集,使得
不是
的子集,
也不是
的子集.求不同的有序集合对
的组数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6e0ad51c5541ec3dcca4a9845f8b7db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a95d247ffb2774bb7e22708b25daf7f0.png)
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9 . 如图,
是双曲线
的右顶点,过
的两条互相垂直的直线分别与双曲线的右支交于点
.问:直线
是否一定过
轴上一定点?如果不存在这样的定点,请说明理由;如果存在这样的定点
,试求出这个定点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1892b7c3cd7bea116f532f66fba44662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6670479a0083dd2dfd5ad55b47b1ab6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/e62b3c9c-d6aa-4063-a90a-b378677fe926.png?resizew=131)
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10 . 设函数
定义于闭区间
,满足
,且对任意
,都有
,其中,常数
满足
.求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/886ba712ecef0dde669add5707016da3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e63e8984af67b66d96e33b41644eef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2933559afcbca7bc71556256b7b01e20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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