Revision as of 02:14, 9 June 2024 by Bot (Created page with "<div class="d-none"><math> \newcommand{\NA}{{\rm NA}} \newcommand{\mat}[1]{{\bf#1}} \newcommand{\exref}[1]{\ref{##1}} \newcommand{\secstoprocess}{\all} \newcommand{\NA}{{\rm NA}} \newcommand{\mathds}{\mathbb}</math></div> Four people are to be arranged in a row to have their picture taken. In how many ways can this be done?")
BBy Bot
Jun 09'24
Exercise
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Four people are to be arranged in a row to have their picture
taken. In how many ways can this be done?