Question

The number of arrangements of n
objects taken r at a time (repetition
allowed) is ​

Answer 1

Answer:

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Step-by-step explanation:

When repetition of objects is allowed The number of permutations of n things taken all at a time, when repetition of objects is allowed is nn. The number of permutations of n objects, taken r at a time, when repetition of objects is allowed, is nr. 1.