From bd87914076d9a704131e9e07eef41da54000de14 Mon Sep 17 00:00:00 2001 From: wangweiye7840 Date: Mon, 26 Feb 2024 14:55:21 +0800 Subject: [PATCH] =?UTF-8?q?=E6=96=B0=E5=A2=9E=E4=B8=A4=E9=81=93=E5=85=B3?= =?UTF-8?q?=E8=81=94=E9=A2=98?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- 题库0.3/Problems.json | 65 +++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 63 insertions(+), 2 deletions(-) diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json index f02cc41c..8267d48d 100644 --- a/题库0.3/Problems.json +++ b/题库0.3/Problems.json @@ -34183,7 +34183,9 @@ "same": [ "011334" ], - "related": [], + "related": [ + "024613" + ], "remark": "", "space": "", "unrelated": [] @@ -498751,7 +498753,9 @@ "20230705\t王伟叶" ], "same": [], - "related": [], + "related": [ + "024614" + ], "remark": "", "space": "4em", "unrelated": [] @@ -668391,6 +668395,63 @@ "space": "4em", "unrelated": [] }, + "024613": { + "id": "024613", + "content": "在平面直角坐标系$xOy$中, 将点$A(2,1)$绕原点$O$逆时针旋转$\\dfrac\\pi 4$到点$B$, 若以射线$OB$为终边的角为$\\alpha$, 则$\\cos \\alpha$的值为\\blank{50}.", + "objs": [ + "K0701001X" + ], + "tags": [ + "第七单元", + "直线", + "2023届高三-四月错题重做-04-易错题-解析几何", + "2023届高三-四月错题重做-04-解析几何", + "2023届高三-第一轮复习讲义-34-直线及其方程", + "J20240534-第一轮复习讲义34直线及其方程" + ], + "genre": "", + "ans": "$\\frac{\\sqrt{10}}{10}$", + "solution": "", + "duration": -1, + "usages": [], + "origin": "赋能练习-20240226修改", + "edit": [ + "20220624\t朱敏慧, 王伟叶", + "20240226\t王伟叶" + ], + "same": [], + "related": [ + "000960" + ], + "remark": "", + "space": "", + "unrelated": [] + }, + "024614": { + "id": "024614", + "content": "已知角$\\alpha$满足$\\sqrt{3} \\sin \\alpha+\\cos \\alpha=1$, 求$\\alpha$的值的集合.", + "objs": [], + "tags": [ + "第三单元" + ], + "genre": "4em", + "ans": "", + "solution": "", + "duration": -1, + "usages": [], + "origin": "空中课堂必修第二册三角例题与习题-20240226修改", + "edit": [ + "20230705\t王伟叶", + "20240226\t王伟叶" + ], + "same": [], + "related": [ + "018388" + ], + "remark": "", + "space": "4em", + "unrelated": [] + }, "030001": { "id": "030001", "content": "若$x,y,z$都是实数, 则:(填写``\\textcircled{1} 充分非必要、\\textcircled{2} 必要非充分、\\textcircled{3} 充要、\\textcircled{4} 既非充分又非必要''之一)\\\\\n(1) ``$xy=0$''是``$x=0$''的\\blank{50}条件;\\\\\n(2) ``$x\\cdot y=y\\cdot z$''是``$x=z$''的\\blank{50}条件;\\\\\n(3) ``$\\dfrac xy=\\dfrac yz$''是``$xz=y^2$''的\\blank{50}条件;\\\\\n(4) ``$|x |>| y|$''是``$x>y>0$''的\\blank{50}条件;\\\\\n(5) ``$x^2>4$''是``$x>2$'' 的\\blank{50}条件;\\\\\n(6) ``$x=-3$''是``$x^2+x-6=0$'' 的\\blank{50}条件;\\\\\n(7) ``$|x+y|<2$''是``$|x|<1$且$|y|<1$'' 的\\blank{50}条件;\\\\\n(8) ``$|x|<3$''是``$x^2<9$'' 的\\blank{50}条件;\\\\\n(9) ``$x^2+y^2>0$''是``$x\\ne 0$'' 的\\blank{50}条件;\\\\\n(10) ``$\\dfrac{x^2+x+1}{3x+2}<0$''是``$3x+2<0$'' 的\\blank{50}条件;\\\\\n(11) ``$0