wangweiye
/
mathdeptv2
Archived
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

修改30439题面

This commit is contained in:
weiye.wang 2024-01-28 20:24:32 +08:00
parent 498d70481f
commit 42f1c7e27a
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
题库0.3/Problems.json
View File

@ -669381,7 +669381,7 @@
},
"030439": {
"id": "030439",
"content": "已知定义域为$(0,+\\infty)$的函数$f(x)$满足: 对任何$x\\in (0,+\\infty)$, 都有$f(3x)=3f(x)$, 且当$x\\in (1,3]$时, $f(x)=3-x$. 在下列结论中, 正确命题的序号是\\blank{50}.\\\\\n\\textcircled{1} 对任何$m\\in \\mathbf{Z}$, 都有$f(3^m)=0$; \\textcircled{2} 函数$f(x)$的值域是$[0,+\\infty)$; \\textcircled{3} 存在$n\\in \\mathbf{Z}$, 使得$f(3^n+1)=17$; \\textcircled{4} ``函数$f(x)$在区间$(a,b)$上单调递减''的一个充要条件是``存在$k\\in \\mathbf{Z}$, 使得$(a,b)\\subseteq (3^k,3^{k+1})$.",
"content": "已知定义域为$(0,+\\infty)$的函数$f(x)$满足: 对任何$x\\in (0,+\\infty)$, 都有$f(3x)=3f(x)$, 且当$x\\in (1,3]$时, $f(x)=3-x$. 在下列结论中, 正确命题的序号是\\blank{50}.\\\\\n\\textcircled{1} 对任何$m\\in \\mathbf{Z}$, 都有$f(3^m)=0$; \\textcircled{2} 函数$f(x)$的值域是$[0,+\\infty)$; \\textcircled{3} 存在$n\\in \\mathbf{Z}$, 使得$f(3^n+1)=17$; \\textcircled{4} ``函数$f(x)$在区间$(a,b)$上单调递减''的一个充要条件是``存在$k\\in \\mathbf{Z}$, 使得$(a,b)\\subseteq (3^k,3^{k+1})$''.",
"objs": [],
"tags": [
"第二单元",
@ -669411,7 +669411,8 @@
],
"origin": "2019届高三基础考试题12",
"edit": [
"20221103\t王伟叶"
"20221103\t王伟叶",
"20240128\t王伟叶"
],
"same": [],
"related": [],