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修改9618题面

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weiye.wang 2024-02-15 10:10:59 +08:00
parent e3184c02a9
commit 22aff76ef3
1 changed files with 3 additions and 2 deletions
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题库0.3/Problems.json
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@ -271050,7 +271050,7 @@
},
"009618": {
"id": "009618",
"content": "试说明, 如果三个首尾相接的向量$\\overrightarrow a$、$\\overrightarrow b$和$\\overrightarrow c$所在的线段能拼接成三角形, 那么一定满足条件$\\overrightarrow a+\\overrightarrow b+\\overrightarrow c=0$. 反过来, 如果$\\overrightarrow a+\\overrightarrow b+\\overrightarrow c=0$, 那么三向量$\\overrightarrow a$、$\\overrightarrow b$和$\\overrightarrow c$所在的线段一定能拼接成三角形吗? 说明理由.",
"content": "试说明, 如果三个首尾相接的向量$\\overrightarrow a$、$\\overrightarrow b$和$\\overrightarrow c$所在的线段能拼接成三角形, 那么一定满足条件$\\overrightarrow a+\\overrightarrow b+\\overrightarrow c=\\overrightarrow{0}$. 反过来, 如果$\\overrightarrow a+\\overrightarrow b+\\overrightarrow c=\\overrightarrow{0}$, 那么三向量$\\overrightarrow a$、$\\overrightarrow b$和$\\overrightarrow c$所在的线段一定能拼接成三角形吗? 说明理由.",
"objs": [],
"tags": [
"第五单元"
@ -271062,7 +271062,8 @@
"usages": [],
"origin": "新教材必修第二册课堂练习",
"edit": [
"20220730\t王伟叶"
"20220730\t王伟叶",
"20240215\t王伟叶"
],
"same": [],
"related": [],