添加一道关联题目

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wangweiye7840 2023-07-28 13:03:06 +08:00
parent 9f1cd9159e
commit 6dd289aaa9
1 changed files with 28 additions and 1 deletions

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@ -494383,6 +494383,31 @@
"space": "4em", "space": "4em",
"unrelated": [] "unrelated": []
}, },
"019302": {
"id": "019302",
"content": "数列$\\{a_n\\}$中, $a_1=1$, $n \\geq 2$时, $a_n, S_n, S_n-\\dfrac 12$成等比数列.\\\\\n(1) 证明: $\\{\\dfrac{1}{S_n}\\}$是等差数列;\\\\\n(2) 求数列$\\{a_n\\}$通项公式.",
"objs": [],
"tags": [
"第四单元"
],
"genre": "4em",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2025届高一校本作业选择性必修第四章-20230728修改",
"edit": [
"20221231\t王伟叶",
"20230728\t徐慧"
],
"same": [],
"related": [
"020806"
],
"remark": "",
"space": "4em",
"unrelated": []
},
"020001": { "020001": {
"id": "020001", "id": "020001",
"content": "判断下列各组对象能否组成集合, 若能组成集合, 指出是有限集还是无限集.\\\\\n(1) 上海市控江中学$2022$年入学的全体高一年级新生;\\\\\n(2) 中国现有各省的名称;\\\\\n(3) 太阳、$2$、上海市;\\\\\n(4) 大于$10$且小于$15$的有理数;\\\\\n(5) 末位是$3$的自然数;\\\\\n(6) 影响力比较大的中国数学家;\\\\\n(7) 方程$x^2+x-3=0$的所有实数解;\\\\ \n(8) 函数$y=\\dfrac 1x$图像上所有的点;\\\\ \n(9) 在平面直角坐标系中, 到定点$(0, 0)$的距离等于$1$的所有点;\\\\\n(10) 不等式$3x-10<0$的所有正整数解;\\\\\n(11) 所有的平面四边形.", "content": "判断下列各组对象能否组成集合, 若能组成集合, 指出是有限集还是无限集.\\\\\n(1) 上海市控江中学$2022$年入学的全体高一年级新生;\\\\\n(2) 中国现有各省的名称;\\\\\n(3) 太阳、$2$、上海市;\\\\\n(4) 大于$10$且小于$15$的有理数;\\\\\n(5) 末位是$3$的自然数;\\\\\n(6) 影响力比较大的中国数学家;\\\\\n(7) 方程$x^2+x-3=0$的所有实数解;\\\\ \n(8) 函数$y=\\dfrac 1x$图像上所有的点;\\\\ \n(9) 在平面直角坐标系中, 到定点$(0, 0)$的距离等于$1$的所有点;\\\\\n(10) 不等式$3x-10<0$的所有正整数解;\\\\\n(11) 所有的平面四边形.",
@ -513805,7 +513830,9 @@
"20221231\t王伟叶" "20221231\t王伟叶"
], ],
"same": [], "same": [],
"related": [], "related": [
"019302"
],
"remark": "", "remark": "",
"space": "4em", "space": "4em",
"unrelated": [] "unrelated": []