次の各問いに答えよう。
↓この問題へのリンクはこちら(右クリックで保存)
【解答】
\def\vn{5} \def\vm{4} \def\siki{4 \cdot 3 \cdot 2 \cdot 1} \def\kotae{24} \newcommand\colNS[2]{\color{#1}#2\color{black}} \newcommand\colUL[2]{\textcolor{#1}{\underline{\color{black}#2}}} \newcommand\colMM[2]{\color{#1}\scriptsize #2\color{black}} \newcommand\colBX[2]{\colorbox{#1}{#2}} \newcommand\colFR[2]{\textcolor{#1}{\fbox{\color{black}#2}}} \begin{align*} \colMM{red}{\vn\ 人が輪\Rightarrow} & \colMM{red}{1人減らして \Rightarrow !}\\ \colNS{lightgray}{(\vn -1)\,! = } & \ \vm\,!\\ \\ =& \ \siki\\ \\ =& \ \kotae \end{align*} %1 orange,bisque %2 green,palegreen %3 magenta, violet %4 deepskyblue, lightcyan
【解答】公式的に解く
\def\vn{5} \def\vm{4} \def\siki{4 \cdot 3 \cdot 2 \cdot 1} \def\kotae{24} \newcommand\colNS[2]{\color{#1}#2\color{black}} \newcommand\colUL[2]{\textcolor{#1}{\underline{\color{black}#2}}} \newcommand\colMM[2]{\color{#1}\scriptsize #2\color{black}} \newcommand\colBX[2]{\colorbox{#1}{#2}} \newcommand\colFR[2]{\textcolor{#1}{\fbox{\color{black}#2}}} \begin{align*} \colMM{red}{\colBX{mistyrose}{$\vn$}\ 人が輪\ \Rightarrow\ } & \colMM{red}{\vn\ 人ならべて!,\ \vn\ で割る}\\ \dfrac{\colBX{mistyrose}{$\vn$}\,!}{\colBX{mistyrose}{$\vn$}} &= \vm\,!\\ \\ & = \siki\\ \\ & = \kotae \end{align*} %1 orange,bisque %2 green,palegreen %3 magenta, violet %4 deepskyblue, lightcyan
↓この問題へのリンクはこちら(右クリックで保存)
【解答】
\def\vn{7} \def\vm{6} \def\siki{6 \cdot 5 \cdot 4 \cdot 3 \cdot 2 \cdot 1} \def\kotae{720} \newcommand\colNS[2]{\color{#1}#2\color{black}} \newcommand\colUL[2]{\textcolor{#1}{\underline{\color{black}#2}}} \newcommand\colMM[2]{\color{#1}\scriptsize #2\color{black}} \newcommand\colBX[2]{\colorbox{#1}{#2}} \newcommand\colFR[2]{\textcolor{#1}{\fbox{\color{black}#2}}} \begin{align*} \colMM{red}{\vn\ 人が輪\Rightarrow} & \colMM{red}{1人減らして \Rightarrow !}\\ \colNS{lightgray}{(\vn -1)\,! = } & \ \vm\,!\\ \\ =& \ \siki\\ \\ =& \ \kotae \end{align*} %1 orange,bisque %2 green,palegreen %3 magenta, violet %4 deepskyblue, lightcyan
【解答】公式的に解く
\def\vn{7} \def\vm{6} \def\siki{6 \cdot 5 \cdot 4 \cdot 3 \cdot 2 \cdot 1} \def\kotae{720} \newcommand\colNS[2]{\color{#1}#2\color{black}} \newcommand\colUL[2]{\textcolor{#1}{\underline{\color{black}#2}}} \newcommand\colMM[2]{\color{#1}\scriptsize #2\color{black}} \newcommand\colBX[2]{\colorbox{#1}{#2}} \newcommand\colFR[2]{\textcolor{#1}{\fbox{\color{black}#2}}} \begin{align*} \colMM{red}{\colBX{mistyrose}{$\vn$}\ 人が輪\ \Rightarrow\ } & \colMM{red}{\vn\ 人ならべて!,\ \vn\ で割る}\\ \dfrac{\colBX{mistyrose}{$\vn$}\,!}{\colBX{mistyrose}{$\vn$}} &= \vm\,!\\ \\ & = \siki\\ \\ & = \kotae \end{align*} %1 orange,bisque %2 green,palegreen %3 magenta, violet %4 deepskyblue, lightcyan
↓この問題へのリンクはこちら(右クリックで保存)
【解答】
\def\vn{6} \def\vm{5} \def\siki{5 \cdot 4 \cdot 3 \cdot 2 \cdot 1} \def\kotae{120} \newcommand\colNS[2]{\color{#1}#2\color{black}} \newcommand\colUL[2]{\textcolor{#1}{\underline{\color{black}#2}}} \newcommand\colMM[2]{\color{#1}\scriptsize #2\color{black}} \newcommand\colBX[2]{\colorbox{#1}{#2}} \newcommand\colFR[2]{\textcolor{#1}{\fbox{\color{black}#2}}} \begin{align*} \colMM{red}{\vn\ 人が円卓に\Rightarrow} & \colMM{red}{1人減らして \Rightarrow !}\\ \colNS{lightgray}{(\vn -1)\,! = } & \ \vm\,!\\ \\ =& \ \siki\\ \\ =& \ \kotae \end{align*} %1 orange,bisque %2 green,palegreen %3 magenta, violet %4 deepskyblue, lightcyan
【解答】公式的に解く
\def\vn{6} \def\vm{5} \def\siki{5 \cdot 4 \cdot 3 \cdot 2 \cdot 1} \def\kotae{120} \newcommand\colNS[2]{\color{#1}#2\color{black}} \newcommand\colUL[2]{\textcolor{#1}{\underline{\color{black}#2}}} \newcommand\colMM[2]{\color{#1}\scriptsize #2\color{black}} \newcommand\colBX[2]{\colorbox{#1}{#2}} \newcommand\colFR[2]{\textcolor{#1}{\fbox{\color{black}#2}}} \begin{align*} \colMM{red}{\colBX{mistyrose}{$\vn$}\ 人が輪\ \Rightarrow\ } & \colMM{red}{\vn\ 人ならべて!,\ \vn\ で割る}\\ \dfrac{\colBX{mistyrose}{$\vn$}\,!}{\colBX{mistyrose}{$\vn$}} &= \vm\,!\\ \\ & = \siki\\ \\ & = \kotae \end{align*} %1 orange,bisque %2 green,palegreen %3 magenta, violet %4 deepskyblue, lightcyan