修改18332

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wangweiye7840 2024-01-31 12:06:58 +08:00
parent a6d124a118
commit 1d261b812d
1 changed files with 3 additions and 2 deletions

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@ -496607,7 +496607,7 @@
},
"018332": {
"id": "018332",
"content": "已知角$\\alpha$的终边经过点$P(-2,0)$, 求角$\\alpha$的正弦、余弦、正切及余切值. 填写下表.\n\\begin{center}\n\\begin{tabular}{|c|c|c|c|c|}\n\\hline 角$\\alpha$& 0 &$\\dfrac{\\pi}{2}$&$\\pi$&$\\dfrac{3 \\pi}{2}$\\\\\n\\hline$\\sin \\alpha$& & & & \\\\\n\\hline$\\cos \\alpha$& & & & \\\\\n\\hline$\\tan \\alpha$& & & & \\\\\n\\hline$\\cot \\alpha$& & & & \\\\\n\\hline\n\\end{tabular}\n\\end{center}",
"content": "已知角$\\alpha$的终边经过点$P(-2,0)$, 求角$\\alpha$的正弦、余弦、正切及余切值.",
"objs": [],
"tags": [
"第三单元"
@ -496619,7 +496619,8 @@
"usages": [],
"origin": "空中课堂必修第二册三角例题与习题",
"edit": [
"20230705\t王伟叶"
"20230705\t王伟叶",
"20240131\t王伟叶"
],
"same": [],
"related": [