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Theory: Перевод арабских чисел в римские числа

Task

Какая римская цифра равна числу \(\displaystyle 5\)?

Solution

Определение

\(\displaystyle 1\) \(\displaystyle 2\) \(\displaystyle 3\) \(\displaystyle 4\) \(\displaystyle 5\) \(\displaystyle 6\) \(\displaystyle 7\) \(\displaystyle 8\) \(\displaystyle 9\) \(\displaystyle 10\)
\(\displaystyle {\rm I}\) \(\displaystyle {\rm II}\) \(\displaystyle {\rm III}\) \(\displaystyle {\rm IV}\) \(\displaystyle {\rm V}\) \(\displaystyle {\rm VI}\) \(\displaystyle {\rm VII}\) \(\displaystyle {\rm VIII}\) \(\displaystyle {\rm IX}\) \(\displaystyle {\rm X}\)

Ответ: \(\displaystyle {\rm V}\).