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修改40551答案

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wangweiye7840 2024-04-07 13:56:27 +08:00
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commit 81e53fd6c5
1 changed files with 3 additions and 2 deletions
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题库0.3/Problems.json
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@ -768880,7 +768880,7 @@
"第三单元"
],
"genre": "解答题",
"ans": "(1) $f(x)=2\\sin(2x+\\dfrac{\\pi}3)$, 振幅为$2$, 初相为$\\dfrac{\\pi}{3}$, 最小正周期为$\\pi$;\\\\\n(2) 单调增区间为$[k\\pi-\\dfrac{5\\pi}{12},k\\pi+\\dfrac{\\pi}{12}]$, $k\\in \\mathbf{Z}$,最小值为$2$, 此时$x=k\\pi-\\dfrac{5\\pi}{12}$, $k\\in \\mathbf{Z}$;\\\\\n(3) $0<a\\leq \\dfrac 4{199\\pi}$",
"ans": "(1) $f(x)=2\\sin(2x+\\dfrac{\\pi}3)$, 振幅为$2$, 初相为$\\dfrac{\\pi}{3}$, 最小正周期为$\\pi$;\\\\\n(2) 单调增区间为$[k\\pi-\\dfrac{5\\pi}{12},k\\pi+\\dfrac{\\pi}{12}]$, $k\\in \\mathbf{Z}$,最小值为$-2$, 此时$x=k\\pi-\\dfrac{5\\pi}{12}$, $k\\in \\mathbf{Z}$;\\\\\n(3) $0<a\\leq \\dfrac 4{199\\pi}$",
"solution": "",
"duration": -1,
"usages": [],
@ -768888,7 +768888,8 @@
"edit": [
"20230403\t王伟叶",
"20240406\t王伟叶",
"20240406\t王伟叶"
"20240406\t王伟叶",
"20240407\t王伟叶"
],
"same": [],
"related": [],