%
%	gbb60166@gmail.com	https://unilab.gbb60166.jp/prekou/prekou.htm
%
% aspectratio= は 1610, 169, 149, 54, 32 の中から選べる（省略時は 43）
% C:\texlive\2023\texmf-dist\tex\latex\beamer\beamer.cls
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%\usepackage[dvipdfmx]{graphicx}%
\def\pgfsysdriver{pgfsys-dvipdfmx.def}%（graphicxパッケージを使用しない場合はこの行を有効に）
%\def\pgfsysdriver{pgfsys-dvips.def}%デフォルト
%\usepackage[e]{esvect}
\usepackage{tikz}%（これで、pgfとpgfforが読み込まれます。）
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\hypersetup{% Jul 18 2023
	pdftitle={プレ高数学科（LaTeX Beamer で汎用PDFプレゼンを作る）},
	pdfauthor={gbb60166@gmail.com},
	pdfsubject={https://unilab.gbb60166.jp/prekou/prekou.htm}
	}

% フォントはお好みで
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% 参考にしたURL
% http://windom.phys.hirosaki-u.ac.jp/fswiki/wiki.cgi?page=LaTeX+Beamer%A4%C7%A5%D7%A5%EC%A5%BC%A5%F3%A5%C6%A1%BC%A5%B7%A5%E7%A5%F3

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% ↑ 数式モードで式の前後に入るスペースを制御したかったが、
%    難しいのでやめた。段々難解なコードになっているのでやめた方がよい？
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%■等号付き不等号 by 美文書作成入門
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% カラーユニバーサルデザインを調べたつもりだがあまり自信がありません
% http://www.fukushihoken.metro.tokyo.jp/kiban/machizukuri/kanren/color.files/colorudguideline.pdf
% http://jfly.iam.u-tokyo.ac.jp/colorset/

% ■ アクセントカラー小面積を目立たせる高彩度色
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% ■ ベースカラー広い面積の塗り分けに用いる低・中彩度色
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\begin{document}

\title{プレ高数学科}\author{gbb60166}

%■■■■■■■■■■■　実験エリア　■■■■■■■■■■■■■■■■


%\end{document}
%■■■■■■■■■■■　ここから本文　■■■■■■■■■■■■■■■■

\begin{frame}[t]
\frametitle{$\sin300^\circ$}
\begin{tikzpicture}[thick,scale=2.5,>=stealth]
%\draw[help lines](-0.6,-2) grid (2.2,0.5);
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\draw[fill,CUDRed](0,0)--(9pt,0) arc (0:-60:9pt) --(0,0);
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	(0,0)--($ (1,{-sqrt(3)}) $)--(1,0);
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\draw(1,0) rectangle +(-4pt,-4pt);
\draw[->](5pt,0) arc (0:300:5pt);
\draw(0,0)--($ (1,{-sqrt(3)}) $)--(1,0);
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\draw(0.5,0.2) node{$1$};
\draw(1.5,-0.8) node{$-\sqrt{3}$};
\draw(0.4,-1) node{$2$};

\footnotesize
\draw(0.5,-0.2) node{$60^\circ$};
\draw(-0.3,0.2) node{$300^\circ$};
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\draw[->](0,-2)--(0,0.5) node[left] {$y$} coordinate(y axis);
\end{tikzpicture}
\begin{tikzpicture}[rotate=0,>=stealth,scale=1,right,anchor=base west]
%\draw[help lines](-0.5,-0.5) grid (6,5.8);
\useasboundingbox(-0.5,-0.5) grid (6,5.8);
\only<1-2>{\draw(0,2) node{\( \sin = \myfrac{\text{縦}}{\,\text{斜め}\, } \)};}
\only<3->{\draw(0,2) node{\( \sin300^\circ =\myfrac{-\sqrt{3}}{2} \)\□答};}

\begin{scope}[yshift=12ex]% 筆記体を書く
\draw[line width=1.5pt,rounded corners=1pt]
	(0.5,0)--(2.5,1.2)--(2.5,0)--cycle;
\draw[line width=1pt](2.3,0.2) rectangle (2.5,0);
\draw[->,CUDRed,line width=3pt,line join=round](0,0)
	.. controls (1,0.3) and (2,1)
	.. (3,2)
	.. controls (3,0.5) and (3,-0.1)
	.. (2.4,0);
\end{scope}
\end{tikzpicture}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{frame}[t]
\frametitle{$\cos300^\circ$}
\begin{tikzpicture}[thick,scale=2.5,>=stealth]
%\draw[help lines](-0.6,-2) grid (2.2,0.5);
\useasboundingbox(-0.6,-2) grid (2.2,0.5);
\fill[CUDCream](0,0)-|($ (1,{-sqrt(3)}) $)--cycle;
\draw[fill,CUDRed] (0,0)--(9pt,0) arc (0:-60:9pt) --(0,0);
\visible<2->{\draw[->,line width=5pt,rounded corners=8pt,CUDBlue]
	($ (1,{-sqrt(3)}) $)--(0,0)--(1,0);
	}
\draw(1,0) rectangle +(-4pt,-4pt);

\draw[->](5pt,0) arc (0:300:5pt);
\draw(0,0)--($ (1,{-sqrt(3)}) $)--(1,0);
\draw[CUDRed,fill] ($ (1,{-sqrt(3)}) $) circle (1pt);

\draw(0.5,0.2) node{$1$};
\draw(1.5,-0.8) node{$-\sqrt{3}$};
\draw(0.4,-1) node{$2$};

\footnotesize
\draw(0.5,-0.2) node{$60^\circ$};
\draw(-0.3,0.2) node{$300^\circ$};
\draw[->](-0.5,0)--(2,0) node[below] {$x$} coordinate(x axis);
\draw[->](0,-2)--(0,0.5) node[left] {$y$} coordinate(y axis);
\end{tikzpicture}
\begin{tikzpicture}[rotate=0,>=stealth,scale=1,right,anchor=base west]
%\draw[help lines](-0.5,-0.5) grid (6,5.8);
\useasboundingbox(-0.5,-0.5) grid (6,5.8);
\only<1-2>{\draw(0,2) node{\( \cos = \myfrac{\text{横}}{\,\text{斜め}\, } \)};}
\only<3->{\draw(0,2) node{\( \cos300^\circ =\myfrac{\,1\,}{2} \)\□答};}

\begin{scope}[yshift=12ex]% 筆記体を書く
\draw[line width=1.5pt,rounded corners=1pt]
	(0.5,0)--(2.5,1.2)--(2.5,0)--cycle;
\draw[line width=1pt](2.3,0.2) rectangle (2.5,0);
\draw[->,CUDRed,line width=3pt,line join=round](3,1.5)
	..controls (1,1.7) and (-0.2,0.5)
	.. (0,0)
	..controls (0.2,-0.5) and (2,-0.5)
	.. (3,-0.1);
\end{scope}
\end{tikzpicture}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{frame}[t]
\frametitle{$\tan300^\circ$}
\begin{tikzpicture}[thick,scale=2.5,>=stealth]
%\draw[help lines](-0.6,-2) grid (2.2,0.5);
\useasboundingbox(-0.6,-2) grid (2.2,0.5);
\fill[CUDCream](0,0)-|($ (1,{-sqrt(3)}) $)--cycle;
\draw[fill,CUDRed] (0,0)--(9pt,0) arc (0:-60:9pt) --(0,0);
\visible<2->{\draw[->,line width=5pt,rounded corners=8pt,CUDBlue]
	(0,0)--(1,0)--($ (1,{-sqrt(3)}) $);
	}
\draw(1,0) rectangle +(-4pt,-4pt);
\draw[->](5pt,0) arc (0:300:5pt);
\draw(0,0)--($ (1,{-sqrt(3)}) $)--(1,0);
\draw[CUDRed,fill] ($ (1,{-sqrt(3)}) $) circle (1pt);

\draw(0.5,0.2) node{$1$};
\draw(1.5,-0.8) node{$-\sqrt{3}$};
\draw(0.4,-1) node{$2$};

\footnotesize
\draw(0.5,-0.2) node{$60^\circ$};
\draw(-0.3,0.2) node{$300^\circ$};
\draw[->](-0.5,0)--(2,0) node[below] {$x$} coordinate(x axis);
\draw[->](0,-2)--(0,0.5) node[left] {$y$} coordinate(y axis);
\end{tikzpicture}
\begin{tikzpicture}[rotate=0,>=stealth,scale=1,right,anchor=base west]
%\draw[help lines](-0.5,-0.5) grid (6,5.8);
\useasboundingbox(-0.5,-0.5) grid (6,5.8);
\only<1-2>{\draw(0,2) node{\( \tan= \myfrac{\text{縦}}{\,\text{横}\,} \)};}
\only<3->{\draw(0,2) node{\( \tan300^\circ = \myfrac{-\sqrt{3}}{1} \)};
	\draw(3.1,0) node{\( = -\sqrt{3} \)\□答};
	}

\begin{scope}[yshift=12ex]% 筆記体を書く
\draw[line width=1.5pt,rounded corners=1pt]
	(0.5,0)--(2.5,1.2)--(2.5,0)--cycle;
\draw[line width=1pt](2.3,0.2) rectangle (2.5,0);
\draw[->,CUDRed,line width=3pt,line join=round] (0,-0.2)
	..controls (1,-0.2) and (3.2,-0.5)
	.. (3.2,0.3)
	..controls (3.2,0.7) and (3.2,1.5)
	.. (3.2,2);
\draw[CUDRed,line width=3pt,line join=round]
	(3.6,-0.2) ..controls (3.1,0) and (3.2,0.2) .. (3.2,1.9)
	(2.8,1.5)--(3.6,1.5);
\end{scope}
\end{tikzpicture}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{frame}[t]
\frametitle{$\sin315^\circ$}
\begin{tikzpicture}[thick,scale=2.5,>=stealth]
%\draw[help lines](-0.6,-2) grid (2.2,0.5);
\useasboundingbox(-0.6,-2) grid (2.2,0.5);
\fill[CUDCream](0,0)-|(1,-1)--cycle;
\draw[fill,CUDRed] (0,0)--(9pt,0) arc (0:-45:9pt) --(0,0);
\visible<2->{\draw[->,line width=5pt,rounded corners=8pt,CUDBlue]
	(0,0)--(1,-1)--(1,0);
	}
\draw[->](5pt,0) arc (0:315:5pt);
\draw(1,0) rectangle +(-4pt,-4pt);

\draw(0,0)--(1,-1)--(1,0);
\draw[CUDRed,fill] (1,-1) circle (1pt);

\draw(0.5,0.2) node{$1$};
\draw(1.3,-0.5) node{$-1$};
\draw(0.4,-0.8) node{$\sqrt{2}$};

\footnotesize
\draw(0.5,-0.15) node{$45^\circ$};
\draw(-0.3,0.2) node{$315^\circ$};
\draw[->](-0.5,0)--(2,0) node[below] {$x$} coordinate(x axis);
\draw[->](0,-2)--(0,0.5) node[left] {$y$} coordinate(y axis);
\end{tikzpicture}
\begin{tikzpicture}[rotate=0,>=stealth,scale=1,right,anchor=base west]
%\draw[help lines](-0.5,-0.5) grid (6,5.8);
\useasboundingbox(-0.5,-0.5) grid (6,5.8);
\only<1-2>{\draw(0,2) node{\( \sin
	= \myfrac{\text{縦}}{\,\text{斜め}\, } \)};}
\only<3->{\draw(0,2) node{\( \sin315^\circ
	=\myfrac{-1}{\sqrt{2}} \)\□答};}

\begin{scope}[yshift=12ex]% 筆記体を書く
\draw[line width=1.5pt,rounded corners=1pt]
	(0.5,0)--(2.5,1.2)--(2.5,0)--cycle;
\draw[line width=1pt](2.3,0.2) rectangle (2.5,0);
\draw[->,CUDRed,line width=3pt,line join=round](0,0)
	.. controls (1,0.3) and (2,1)
	.. (3,2)
	.. controls (3,0.5) and (3,-0.1)
	.. (2.4,0);
\end{scope}
\end{tikzpicture}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{frame}[t]
\frametitle{$\cos315^\circ$}
\begin{tikzpicture}[thick,scale=2.5,>=stealth]
%\draw[help lines](-0.6,-2) grid (2.2,0.5);
\useasboundingbox(-0.6,-2) grid (2.2,0.5);
\fill[CUDCream](0,0)-|(1,-1)--cycle;
\draw[fill,CUDRed] (0,0)--(9pt,0) arc (0:-45:9pt) --(0,0);
\visible<2->{\draw[->,line width=5pt,rounded corners=8pt,CUDBlue]
	(1,-1)--(0,0)--(1,0);
	}
\draw[->](5pt,0) arc (0:315:5pt);
\draw(1,0) rectangle +(-4pt,-4pt);
\draw(0,0)--(1,-1)--(1,0);
\draw[CUDRed,fill] (1,-1) circle (1pt);

\draw(0.5,0.2) node{$1$};
\draw(1.3,-0.5) node{$-1$};
\draw(0.4,-0.8) node{$\sqrt{2}$};

\footnotesize
\draw(0.5,-0.15) node{$45^\circ$};
\draw(-0.3,0.2) node{$315^\circ$};
\draw[->](-0.5,0)--(2,0) node[below] {$x$} coordinate(x axis);
\draw[->](0,-2)--(0,0.5) node[left] {$y$} coordinate(y axis);
\end{tikzpicture}
\begin{tikzpicture}[rotate=0,>=stealth,scale=1,right,anchor=base west]
%\draw[help lines](-0.5,-0.5) grid (6,5.8);
\useasboundingbox(-0.5,-0.5) grid (6,5.8);
\only<1-2>{\draw(0,2) node{\( \cos = \myfrac{\text{横}}{\,\text{斜め}\, } \)};}
\only<3->{\draw(0,2) node{\( \cos315^\circ =\myfrac{1}{\sqrt{2}} \)\□答};}

\begin{scope}[yshift=12ex]% 筆記体を書く
\draw[line width=1.5pt,rounded corners=1pt]
	(0.5,0)--(2.5,1.2)--(2.5,0)--cycle;
\draw[line width=1pt](2.3,0.2) rectangle (2.5,0);
\draw[->,CUDRed,line width=3pt,line join=round](3,1.5)
	..controls (1,1.7) and (-0.2,0.5)
	.. (0,0)
	..controls (0.2,-0.5) and (2,-0.5)
	.. (3,-0.1);
\end{scope}
\end{tikzpicture}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{frame}[t]
\frametitle{$\tan315^\circ$}
\begin{tikzpicture}[thick,scale=2.5,>=stealth]
%\draw[help lines](-0.6,-2) grid (2.2,0.5);
\useasboundingbox(-0.6,-2) grid (2.2,0.5);
\fill[CUDCream](0,0)-|(1,-1)--cycle;
\draw[fill,CUDRed] (0,0)--(9pt,0) arc (0:-45:9pt) --(0,0);
\visible<2->{\draw[->,line width=5pt,rounded corners=8pt,CUDBlue]
	(0,0)--(1,0)--(1,-1);
	}
\draw[->](5pt,0) arc (0:315:5pt);
\draw(1,0) rectangle +(-4pt,-4pt);
\draw(0,0)--(1,-1)--(1,0);
\draw[CUDRed,fill] (1,-1) circle (1pt);

\draw(0.5,0.2) node{$1$};
\draw(1.3,-0.5) node{$-1$};
\draw(0.4,-0.8) node{$\sqrt{2}$};

\footnotesize
\draw(0.5,-0.15) node{$45^\circ$};
\draw(-0.3,0.2) node{$315^\circ$};
\draw[->](-0.5,0)--(2,0) node[below] {$x$} coordinate(x axis);
\draw[->](0,-2)--(0,0.5) node[left] {$y$} coordinate(y axis);
\end{tikzpicture}
\begin{tikzpicture}[rotate=0,>=stealth,scale=1,right,anchor=base west]
%\draw[help lines](-0.5,-0.5) grid (6,5.8);
\useasboundingbox(-0.5,-0.5) grid (6,5.8);
\only<1-2>{\draw(0,2) node{\( \tan= \myfrac{\text{縦}}{\,\text{横}\,} \)};}
\only<3->{\draw(0,2) node{\( \tan315^\circ = \myfrac{-1}{1} \)};
	\draw(3.1,0) node{\( = -1 \)\□答};
	}

\begin{scope}[yshift=12ex]% 筆記体を書く
\draw[line width=1.5pt,rounded corners=1pt]
	(0.5,0)--(2.5,1.2)--(2.5,0)--cycle;
\draw[line width=1pt](2.3,0.2) rectangle (2.5,0);
\draw[->,CUDRed,line width=3pt,line join=round] (0,-0.2)
	..controls (1,-0.2) and (3.2,-0.5)
	.. (3.2,0.3)
	..controls (3.2,0.7) and (3.2,1.5)
	.. (3.2,2);
\draw[CUDRed,line width=3pt,line join=round] (3.6,-0.2)
	..controls (3.1,0) and (3.2,0.2)
	.. (3.2,1.9)
	(2.8,1.5)--(3.6,1.5);
\end{scope}
\end{tikzpicture}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{frame}[t]
\frametitle{$\sin330^\circ$}
\begin{tikzpicture}[thick,scale=2.5,>=stealth]
%\draw[help lines](-0.6,-2) grid (2.2,0.5);
\useasboundingbox(-0.6,-2) grid (2.2,0.5);
\fill[CUDCream](0,0)-|($ ({sqrt(3)},-1) $)--cycle;
\draw[fill,CUDRed] (0,0)--(9pt,0) arc (0:-30:9pt) --(0,0);
\visible<2->{\draw[->,line width=5pt,rounded corners=8pt,CUDBlue]
	(0,0)--($ ({sqrt(3)},-1) $)--($ ({sqrt(3)},0) $);
	}
\draw[->](5pt,0) arc (0:330:5pt);
\draw({sqrt(3)},0) rectangle +(-4pt,-4pt);
\draw(0,0)--($ ({sqrt(3)},-1) $)--($ ({sqrt(3)},0) $);
\draw[CUDRed,fill] ($ ({sqrt(3)},-1) $) circle (1pt);

\draw(0.9,0.2) node{$\sqrt{3}$};
\draw(2,-0.5) node{$-1$};
\draw(0.8,-0.8) node{$2$};

\footnotesize
\draw(0.6,-0.15) node{$30^\circ$};
\draw(-0.3,0.2) node{$330^\circ$};
\draw[->](-0.5,0)--(2,0) node[below] {$x$} coordinate(x axis);
\draw[->](0,-2)--(0,0.5) node[left] {$y$} coordinate(y axis);
\end{tikzpicture}
\begin{tikzpicture}[rotate=0,>=stealth,scale=1,right,anchor=base west]
%\draw[help lines](-0.5,-0.5) grid (6,5.8);
\useasboundingbox(-0.5,-0.5) grid (6,5.8);
\only<1-2>{\draw(0,2) node{\( \sin
	= \myfrac{\text{縦}}{\,\text{斜め}\, } \)};}
\only<3->{\draw(0,2) node{\( \sin330^\circ
	=\myfrac{-1}{2} \)\□答};}

\begin{scope}[yshift=12ex]% 筆記体を書く
\draw[line width=1.5pt,rounded corners=1pt]
	(0.5,0)--(2.5,1.2)--(2.5,0)--cycle;
\draw[line width=1pt](2.3,0.2) rectangle (2.5,0);
\draw[->,CUDRed,line width=3pt,line join=round] (0,0)
	.. controls (1,0.3) and (2,1)
	.. (3,2) .. controls (3,0.5) and (3,-0.1)
	.. (2.4,0);
\end{scope}
\end{tikzpicture}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{frame}[t]
\frametitle{$\cos330^\circ$}
\begin{tikzpicture}[thick,scale=2.5,>=stealth]
%\draw[help lines](-0.6,-2) grid (2.2,0.5);
\useasboundingbox(-0.6,-2) grid (2.2,0.5);
\fill[CUDCream](0,0)-|($ ({sqrt(3)},-1) $)--cycle;
\draw[fill,CUDRed] (0,0)--(9pt,0) arc (0:-30:9pt) --(0,0);
\visible<2->{\draw[->,line width=5pt,rounded corners=8pt,CUDBlue]
	($ ({sqrt(3)},-1) $)--(0,0)--($ ({sqrt(3)},0) $);
	}
\draw[->](5pt,0) arc (0:330:5pt);
\draw({sqrt(3)},0) rectangle +(-4pt,-4pt);
\draw(0,0)--($ ({sqrt(3)},-1) $)--($ ({sqrt(3)},0) $);
\draw[CUDRed,fill] ($ ({sqrt(3)},-1) $) circle (1pt);

\draw(0.9,0.2) node{$\sqrt{3}$};
\draw(2,-0.5) node{$-1$};
\draw(0.8,-0.8) node{$2$};

\footnotesize
\draw(0.6,-0.15) node{$30^\circ$};
\draw(-0.3,0.2) node{$330^\circ$};
\draw[->](-0.5,0)--(2,0) node[below] {$x$} coordinate(x axis);
\draw[->](0,-2)--(0,0.5) node[left] {$y$} coordinate(y axis);
\end{tikzpicture}
\begin{tikzpicture}[rotate=0,>=stealth,scale=1,right,anchor=base west]
%\draw[help lines](-0.5,-0.5) grid (6,5.8);
\useasboundingbox(-0.5,-0.5) grid (6,5.8);
\only<1-2>{\draw(0,2)
	node{\( \cos = \myfrac{\text{横}}{\,\text{斜め}\, } \)};}
\only<3->{\draw(0,2)
	node{\( \cos330^\circ =\myfrac{\sqrt{3}}{2} \)\□答};}

\begin{scope}[yshift=12ex]% 筆記体を書く
\draw[line width=1.5pt,rounded corners=1pt]
	(0.5,0)--(2.5,1.2)--(2.5,0)--cycle;
\draw[line width=1pt](2.3,0.2) rectangle (2.5,0);
\draw[->,CUDRed,line width=3pt,line join=round] (3,1.5)
	..controls (1,1.7) and (-0.2,0.5)
	.. (0,0)
	..controls (0.2,-0.5) and (2,-0.5)
	.. (3,-0.1);
\end{scope}
\end{tikzpicture}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{frame}[t]
\frametitle{$\tan330^\circ$}
\begin{tikzpicture}[thick,scale=2.5,>=stealth]
%\draw[help lines](-0.6,-2) grid (2.2,0.5);
\useasboundingbox(-0.6,-2) grid (2.2,0.5);
\fill[CUDCream](0,0)-|($ ({sqrt(3)},-1) $)--cycle;
\draw[fill,CUDRed] (0,0)--(9pt,0) arc (0:-30:9pt) --(0,0);
\visible<2->{\draw[->,line width=5pt,rounded corners=8pt,CUDBlue]
	(0,0)--($ ({sqrt(3)},0) $)--($ ({sqrt(3)},-1) $);
	}
\draw[->](5pt,0) arc (0:330:5pt);
\draw({sqrt(3)},0) rectangle +(-4pt,-4pt);
\draw(0,0)--($ ({sqrt(3)},-1) $)--($ ({sqrt(3)},0) $);
\draw[CUDRed,fill] ($ ({sqrt(3)},-1) $) circle (1pt);

\draw(0.9,0.2) node{$\sqrt{3}$};
\draw(2,-0.5) node{$-1$};
\draw(0.8,-0.8) node{$2$};

\footnotesize
\draw(0.6,-0.15) node{$30^\circ$};
\draw(-0.3,0.2) node{$330^\circ$};
\draw[->](-0.5,0)--(2,0) node[below] {$x$} coordinate(x axis);
\draw[->](0,-2)--(0,0.5) node[left] {$y$} coordinate(y axis);
\end{tikzpicture}
\begin{tikzpicture}[rotate=0,>=stealth,scale=1,right,anchor=base west]
%\draw[help lines](-0.5,-0.5) grid (6,5.8);
\useasboundingbox(-0.5,-0.5) grid (6,5.8);
\only<1-2>{\draw(0,2) node{\( \tan
	= \myfrac{\text{縦}}{\,\text{横}\,} \)};}
\only<3->{\draw(0,2) node{\( \tan330^\circ = \myfrac{-1}{\sqrt{3}} \)\□答};
	}

\begin{scope}[yshift=12ex]% 筆記体を書く
\draw[line width=1.5pt,rounded corners=1pt]
	(0.5,0)--(2.5,1.2)--(2.5,0)--cycle;
\draw[line width=1pt](2.3,0.2) rectangle (2.5,0);
\draw[->,CUDRed,line width=3pt,line join=round](0,-0.2)
	..controls (1,-0.2) and (3.2,-0.5)
	.. (3.2,0.3)
	..controls (3.2,0.7) and (3.2,1.5)
	.. (3.2,2);
\draw[CUDRed,line width=3pt,line join=round](3.6,-0.2)
	..controls (3.1,0) and (3.2,0.2)
	.. (3.2,1.9)
	(2.8,1.5)--(3.6,1.5);
\end{scope}
\end{tikzpicture}
\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%






\end{document}
\textcolor{CUDRed}{



