2024·全国·模拟预测
解题方法
1 . 斐波那契时钟是一种基于斐波那契数列设计的特殊时钟.钟面上是5个正方形方块,每个方块对应的数值分别是斐波那契数列里的前5个数:
,方块的数值固定,颜色可变化,可呈现红色、蓝色、绿色、白色.人们根据方块对应的数值和颜色计算时间,规则如下:小时数
红色方块数值
蓝色方块数值;分钟数
(绿色方块数值
蓝色方块数值)
;呈现白色时忽略.如图表示时间为
,则当表示时间为
时,数值为5的方块为白色的概率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f6edad4fe711f5eed7fb80487b694a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6706fe00b4e231e62d9ecbec567d526b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4cd9a7068de096606d1ab991f5e6da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fc5f79ccd15b9adaf078f450c546f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d31c3164ae9b4e287f673b5508aa2f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9b177db0718e17f19a2e2fb3a145f22.png)
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解题方法
2 . 已知向量
,
,
满足
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd8e084eb67f57b48a54eff855daa17.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a321112ae2829a4783f7e4a1f022183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7178bab4fb202d49625436e085a8a987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0150d9c357f2f8f8deecacd3ef0545cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd8e084eb67f57b48a54eff855daa17.png)
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真题
3 .
五种活动,甲、乙都要选择三个活动参加.甲选到
的概率为______ ;已知乙选了
活动,他再选择
活动的概率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1d75df9d80ce1e0b7cb50464e293864.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
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7日内更新
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2207次组卷
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4卷引用:2024年天津高考数学真题
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4 . 已知动圆
经过点
及原点
,点
是圆
与圆
的一个公共点,则当
最大时,圆
的半径为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc0d82cb174d173b7e36937c3f99f591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24482676ca3324dff073ade7ec07da7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0a777d653d22d0c0b5949390d67514b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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5 . 三棱锥
中,
是边长为
的正三角形,
, 若三棱锥的体积为
,则
长度的最小值为___________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307d38cc7012c328f1f22aa793fe76d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb57d84f9bbcb3e30d4ce7e2e1e8604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
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解题方法
6 . 已知
,
是两个单位向量,若
在
上的投影向量为
,则
与
的夹角为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c86779e465e98e32df7e1de20a0a87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0411792b587ddd3e04440392f011c224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b95d660852c5226ff65a21cfb36b8b39.png)
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7 . 已知数列
满足:
,
,
,则
的前n项积的最大值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b93ce1501d0ce23d7e3520188d0f5d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbe7bdaaf8b0adf10bf2ef6c1255b1dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca4123422b5a6621da6a3214aa8c3e2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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2024高三·全国·专题练习
8 . 已知椭圆
的焦点为
,
,若点
在椭圆上,则满足
(其中
为坐标原点)的点
的个数为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dfa3c86d250e79db546ea6604c42687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2024高三·全国·专题练习
9 . 将函数
的图象绕坐标原点逆时针旋转θ(θ为锐角),若所得曲线仍是一个函数的图象,则θ的范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c92fd16a9f45a25aa6a615ac9d050a.png)
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10 . 对于
的展开式,含
项的系数为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea29572f9af2ebf2219fd99de1139627.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0a89e3c30f6e4d4c5db4378b05d987.png)
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