修改40551答案

题库0.3/Problems.json

@@ -768880,13 +768880,15 @@
             "第三单元"
         ],
         "genre": "解答题",
-        "ans": "(1)$f(x)=2\\sin(2x+\\dfrac{\\pi}3)$\\\\\n(2)单调增区间为$[k\\pi-\\dfrac{5\\pi}{12},k\\pi+\\dfrac{\\pi}{12}]$,最小值为2，此时$x=k\\pi-\\dfrac{5\\pi}{12}$\\\\\n(3)$0<a\\leq \\dfrac 4{199\\pi}$",
+        "ans": "(1) $f(x)=2\\sin(2x+\\dfrac{\\pi}3)$, 振幅为$2$, 初相为$\\dfrac{\\pi}{3}$, 最小正周期为$\\pi$;\\\\\n(2) 单调增区间为$[k\\pi-\\dfrac{5\\pi}{12},k\\pi+\\dfrac{\\pi}{12}]$, $k\\in \\mathbf{Z}$,最小值为$2$, 此时$x=k\\pi-\\dfrac{5\\pi}{12}$, $k\\in \\mathbf{Z}$;\\\\\n(3) $0<a\\leq \\dfrac 4{199\\pi}$",
         "solution": "",
         "duration": -1,
         "usages": [],
         "origin": "2025届高一下学期周末卷08",
         "edit": [
-            "20230403\t王伟叶"
+            "20230403\t王伟叶",
+            "20240406\t王伟叶",
+            "20240406\t王伟叶"
         ],
         "same": [],
         "related": [],