添加自拟题目3题

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wangweiye7840 2023-07-26 14:55:52 +08:00
parent fed12d4471
commit ae20b2987a
1 changed files with 60 additions and 0 deletions

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@ -494197,6 +494197,66 @@
"space": "4em",
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"019296": {
"id": "019296",
"content": "若关于 $x$ 的不等式 $|a x+2|<6$ 的解集是 $(-1,2)$, 求不等式 $\\dfrac{x}{a x+2}\\leq 1$ 的解集.",
"objs": [],
"tags": [],
"genre": "解答题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "自拟题目",
"edit": [
"20230726\t赵琍琍"
],
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"remark": "",
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"019297": {
"id": "019297",
"content": "解关于 $x$ 的不等式: $|x-1|>|x-a|$($a \\in \\mathbf{R}$).",
"objs": [],
"tags": [],
"genre": "解答题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "自拟题目",
"edit": [
"20230726\t赵琍琍"
],
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"019298": {
"id": "019298",
"content": "已知关于 $x$ 的不等式 $|x-2|+|x-1|<m$($m>0$) 的解集为非空集合, 求 $m$ 的取值范围.",
"objs": [],
"tags": [],
"genre": "解答题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "自拟题目",
"edit": [
"20230726\t赵琍琍"
],
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"remark": "",
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"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.",