录入两道关联题

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wangweiye7840 2024-03-11 14:18:37 +08:00
parent 0bcd9f5764
commit bed4204696
1 changed files with 56 additions and 2 deletions

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@ -49336,7 +49336,9 @@
"20220625\t王伟叶"
],
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"remark": "",
"space": "4em",
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@ -684181,6 +684183,56 @@
"space": "",
"unrelated": []
},
"024719": {
"id": "024719",
"content": "在$\\triangle ABC$中, 若$\\cos 2B-\\cos 2C=2\\sin ^2A$, 则此三角形的形状为\\blank{50}.",
"objs": [],
"tags": [
"第三单元"
],
"genre": "",
"ans": "直角三角形",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2025届高一下学期周末卷05小测-20240311修改",
"edit": [
"20230324\t王伟叶",
"20240311\t吴轩萍"
],
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"040253"
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"remark": "",
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},
"024720": {
"id": "024720",
"content": "已知$\\sin 2\\alpha=-\\dfrac{8}{17}$, 且$\\pi<2\\alpha<\\dfrac{3\\pi}{2}$, 则$\\tan\\alpha=$\\blank{50}.",
"objs": [],
"tags": [
"第三单元"
],
"genre": "",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2016届创新班作业\t2115-万能置换公式与半角公式-20240311修改",
"edit": [
"20220625\t王伟叶",
"20240311\t吴轩萍"
],
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"030001": {
"id": "030001",
"content": "若$x,y,z$都是实数, 则:(填写``\\textcircled{1} 充分非必要、\\textcircled{2} 必要非充分、\\textcircled{3} 充要、\\textcircled{4} 既非充分又非必要''之一)\\\\\n(1) ``$xy=0$''是``$x=0$''的\\blank{50}条件;\\\\\n(2) ``$x\\cdot y=y\\cdot z$''是``$x=z$''的\\blank{50}条件;\\\\\n(3) ``$\\dfrac xy=\\dfrac yz$''是``$xz=y^2$''的\\blank{50}条件;\\\\\n(4) ``$|x |>| y|$''是``$x>y>0$''的\\blank{50}条件;\\\\\n(5) ``$x^2>4$''是``$x>2$'' 的\\blank{50}条件;\\\\\n(6) ``$x=-3$''是``$x^2+x-6=0$'' 的\\blank{50}条件;\\\\\n(7) ``$|x+y|<2$''是``$|x|<1$且$|y|<1$'' 的\\blank{50}条件;\\\\\n(8) ``$|x|<3$''是``$x^2<9$'' 的\\blank{50}条件;\\\\\n(9) ``$x^2+y^2>0$''是``$x\\ne 0$'' 的\\blank{50}条件;\\\\\n(10) ``$\\dfrac{x^2+x+1}{3x+2}<0$''是``$3x+2<0$'' 的\\blank{50}条件;\\\\\n(11) ``$0<x<3$''是``$|x-1|<2$'' 的\\blank{50}条件.",
@ -749994,7 +750046,9 @@
"20230324\t王伟叶"
],
"same": [],
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"related": [
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