修改21642答案

题库0.3/Problems.json

@@ -602945,7 +602945,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "$\\left \\{x|\\dfrac{\\pi}{6} \\leq x \\leq \\dfrac{5\\pi}{6},k \\in \\mathbf{Z} \\right \\}$",
+        "ans": "$[\\dfrac{\\pi}{6}, \\dfrac{5\\pi}{6}]$",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -602960,7 +602960,8 @@
         ],
         "origin": "2025届高一下校本作业",
         "edit": [
-            "20230209\t王伟叶"
+            "20230209\t王伟叶",
+            "20240320\t王伟叶"
         ],
         "same": [],
         "related": [],