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Mathematics 14 Online
OpenStudy (anonymous):

How many strings of length 3 are possible (without repetition) given a set X = {a, b, c, d}

OpenStudy (anonymous):

\[ 4 \times 3 \times 2 = 24 \] Revert if you don't understand.

OpenStudy (anonymous):

That what I got. Just wanted to make sure. Thanks

OpenStudy (anonymous):

Glad to help :)

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