From 997e877d7163b1a55620252517c70773d40cad7f Mon Sep 17 00:00:00 2001
From: wangweiye7840 <kj_wangweiye@126.com>
Date: Mon, 19 Feb 2024 12:35:12 +0800
Subject: [PATCH] =?UTF-8?q?=E7=BC=96=E8=BE=9140071=E9=A2=98=E9=9D=A2?=
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---
 题库0.3/Problems.json | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json
index 8da6f343..a2168ce6 100644
--- a/题库0.3/Problems.json
+++ b/题库0.3/Problems.json
@@ -725312,7 +725312,7 @@
     },
     "040071": {
         "id": "040071",
-        "content": "设常数$a \\in \\mathbf{R}$, $\\cos x=a$分别有如下情况, 写出相应的取值范围.\\\\\n(1) 方程$\\cos x=a$在$[-\\dfrac{2 \\pi}{3}, \\dfrac{\\pi}{3}]$内恰有$1$个$x$, 则$a$的取值范围为\\blank{50};\\\\\n(2) 设常数$m>-\\dfrac{2 \\pi}{3}$. 当$a=\\dfrac{1}{2}$时, 方程$\\cos x=a$在$[-\\dfrac{2 \\pi}{3}, m]$内恰有一个$x$, 则$m$的取值范围为\\blank{50};\\\\\n(3) 常数$a$使得: 对于任意常数$m>-\\dfrac{2 \\pi}{3}$, 方程$\\cos x=a$在$[-\\dfrac{2 \\pi}{3}, m]$内总是至少有一个$x$存在, 则$a$的取值范围为\\blank{50}.",
+        "content": "设常数$a \\in \\mathbf{R}$. \\\\\n(1) 若关于$x$的方程$\\cos x=a$在区间$[-\\dfrac{2 \\pi}{3}, \\dfrac{\\pi}{3}]$上恰有$1$个解, 则$a$的取值范围为\\blank{50};\\\\\n(2) 设常数$m>-\\dfrac{2 \\pi}{3}$. 当$a=\\dfrac{1}{2}$时, 关于$x$的方程$\\cos x=a$在区间$[-\\dfrac{2 \\pi}{3}, m]$上恰有一解, 则$m$的取值范围为\\blank{50};\\\\\n(3) 若对于任意常数$m>-\\dfrac{2 \\pi}{3}$, 关于$x$的方程$\\cos x=a$在$[-\\dfrac{2 \\pi}{3}, m]$内总是至少有一解, 则$a$的取值范围为\\blank{50}.",
         "objs": [],
         "tags": [
             "第三单元"
@@ -725324,7 +725324,8 @@
         "usages": [],
         "origin": "2025届高一下学期周末卷02",
         "edit": [
-            "20230224\t王伟叶"
+            "20230224\t王伟叶",
+            "20240219\t王伟叶"
         ],
         "same": [],
         "related": [],