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Mathematics, 22.04.2020 04:02 Bmurphy17

How many three-letter "words" can be made from 5 different letters "FGHIJ" if...

a) repetition of letters is allowed?

b) repetition of letters is not allowed?

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How many three-letter "words" can be made from 5 different letters "FGHIJ" if...

a) repe...
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