diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json index e3d26e7c..98719e83 100644 --- a/题库0.3/Problems.json +++ b/题库0.3/Problems.json @@ -274781,7 +274781,7 @@ }, "009609": { "id": "009609", - "content": "下图是函数y=$A\\sin (\\omega x+\\varphi )$的图像, 请根据图中的信息, 写出该图像的一个函数表达式.\n\\begin{center}\n\\begin{tikzpicture}[>=latex]\n\\draw [->] (-0.5,0) -- (4,0) node [below] {$x$};\n\\draw [->] (0,-2) -- (0,2) node [right] {$y$};\n\\draw (0,0) node [below right] {$O$};\n\\draw ({-pi/12},0) node [below left] {$-\\dfrac{\\pi}{12}$};\n\\draw ({11*pi/12},0) node [below right] {$\\dfrac{11\\pi}{12}$};\n\\draw [domain = {-pi/12}:{11*pi/12}] plot (\\x,{1.5*sin(2*\\x/pi*180+30)});\n\\draw [dashed] (0,1.5) -- ({pi/6},1.5) (0,-1.5) -- ({8*pi/12},-1.5);\n\\draw (0,-1.5) node [left] {$-\\dfrac 32$} (0,1.5) node [left] {$\\dfrac 32$};\n\\end{tikzpicture}\n\\end{center}", + "content": "下图是函数$y=A\\sin (\\omega x+\\varphi )$的图像, 请根据图中的信息, 写出该图像的一个函数表达式.\n\\begin{center}\n\\begin{tikzpicture}[>=latex]\n\\draw [->] (-0.5,0) -- (4,0) node [below] {$x$};\n\\draw [->] (0,-2) -- (0,2) node [right] {$y$};\n\\draw (0,0) node [below right] {$O$};\n\\draw ({-pi/12},0) node [below left] {$-\\dfrac{\\pi}{12}$};\n\\draw ({11*pi/12},0) node [below right] {$\\dfrac{11\\pi}{12}$};\n\\draw [domain = {-pi/12}:{11*pi/12}] plot (\\x,{1.5*sin(2*\\x/pi*180+30)});\n\\draw [dashed] (0,1.5) -- ({pi/6},1.5) (0,-1.5) -- ({8*pi/12},-1.5);\n\\draw (0,-1.5) node [left] {$-\\dfrac 32$} (0,1.5) node [left] {$\\dfrac 32$};\n\\end{tikzpicture}\n\\end{center}", "objs": [], "tags": [ "第三单元" @@ -274793,7 +274793,8 @@ "usages": [], "origin": "新教材必修第二册课堂练习", "edit": [ - "20220730\t王伟叶" + "20220730\t王伟叶", + "20240325\t王伟叶" ], "same": [], "related": [],