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修改21697,21699题目与答案

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weiye.wang 2024-02-10 21:31:53 +08:00
parent e09615476c
commit 791e699f1f
1 changed files with 7 additions and 5 deletions
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题库0.3/Problems.json
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@ -589794,7 +589794,7 @@
"第三单元"
],
"genre": "解答题",
"ans": "(1) $f(x)=\\dfrac{\\sqrt{3}}{2}\\sin(3x+\\pi)+\\dfrac{\\sqrt{3}}{2};$\\\\\n(2) $[-\\dfrac{\\pi}{2}+\\dfrac{2k\\pi}{3},-\\dfrac{\\pi}{6}+\\dfrac{2k\\pi}{3}],k \\in \\mathbf{Z}$;\\\\\n(3) 函数最大值为$\\sqrt{3}$,此时$x$值为${x|x=-\\dfrac{\\pi}{6}+\\dfrac{2k\\pi}{3},k \\in \\mathbf{Z}}$",
"ans": "(1) $f(x)=\\dfrac{\\sqrt{3}}{2}\\sin(3x+\\pi)+\\dfrac{\\sqrt{3}}{2};$\\\\\n(2) $[-\\dfrac{\\pi}{2}+\\dfrac{2k\\pi}{3},-\\dfrac{\\pi}{6}+\\dfrac{2k\\pi}{3}],k \\in \\mathbf{Z}$;\\\\\n(3) 函数最大值为$\\sqrt{3}$,此时$x$值的集合为$\\{x|x=-\\dfrac{\\pi}{6}+\\dfrac{2k\\pi}{3},k \\in \\mathbf{Z}\\}$",
"solution": "",
"duration": -1,
"usages": [
@ -589809,7 +589809,8 @@
],
"origin": "2025届高一下校本作业",
"edit": [
"20230209\t王伟叶"
"20230209\t王伟叶",
"20240210\t王伟叶"
],
"same": [],
"related": [],
@ -589850,13 +589851,13 @@
},
"021699": {
"id": "021699",
"content": "要得到函数$y=3 \\sin x$的图像, 只需要把函数$y=\\sin x$的图像上的对应点的坐标\\blank{30}(``伸长''或``缩短'')到原来的\\blank{50}.",
"content": "要得到函数$y=3 \\sin x$的图像, 只需要把函数$y=\\sin x$的图像上的对应点的\\blank{20}坐标\\blank{30}(``伸长''或``缩短'')到原来的\\blank{50}.",
"objs": [],
"tags": [
"第三单元"
],
"genre": "填空题",
"ans": "纵;伸长; $3$.",
"ans": "纵;伸长; $3$倍.",
"solution": "",
"duration": -1,
"usages": [
@ -589871,7 +589872,8 @@
],
"origin": "2025届高一下校本作业",
"edit": [
"20230209\t王伟叶"
"20230209\t王伟叶",
"20240210\t王伟叶"
],
"same": [],
"related": [],