diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json index 01a858fe..3934dcbd 100644 --- a/题库0.3/Problems.json +++ b/题库0.3/Problems.json @@ -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": [