Permutation/Ordered Selection/Examples/2 from 3

Example of Permutations

There are $6$ permutations of $2$ objects taken $3$ at a time:

$a \, b \quad a \, c \quad b \, a \quad b \, c \quad c \, a \quad c \, b$

Sources

• 1971: George E. Andrews: Number Theory ... (previous) ... (next): $\text {3-1}$ Permutations and Combinations: Example $\text {3-4}$