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修改40550答案

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weiye.wang 2024-04-06 10:07:51 +08:00
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题库0.3/Problems.json
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@ -768856,14 +768856,15 @@
"第三单元"
],
"genre": "解答题",
"ans": "(1) $-\\dfrac 12$;\\\\\n(2) $f(x)=\\begin{cases}-\\sin \\dfrac{x}{2}, & x\\in [-\\dfrac{5\\pi}{2},-\\dfrac{\\pi}{2}),\\\\ \\cos\\dfrac{x}{2}, & x\\in [-\\dfrac{\\pi}{2},\\dfrac{\\pi}{2});\\end{cases}$\\\\\n(3) $\\{x|x=k\\pi+2\\arcsin{\\dfrac 16}$或$x=k\\pi-\\dfrac{\\pi}3,k \\in \\mathbb{Z}\\}$",
"ans": "(1) $-\\dfrac 12$;\\\\\n(2) $f(x)=\\begin{cases}-\\sin \\dfrac{x}{2}, & x\\in [-\\dfrac{5\\pi}{2},-\\dfrac{3\\pi}{2}),\\\\ \\cos\\dfrac{x}{2}, & x\\in [-\\dfrac{3\\pi}{2},-\\dfrac{\\pi}{2});\\end{cases}$\\\\\n(3) $\\{x|x=k\\pi+2\\arcsin{\\dfrac 16}$或$x=k\\pi-\\dfrac{\\pi}3,k \\in \\mathbb{Z}\\}$",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2025届高一下学期周末卷08",
"edit": [
"20230403\t王伟叶",
"20240402\t王伟叶"
"20240402\t王伟叶",
"20240406\t王伟叶"
],
"same": [],
"related": [],