herchellann302
24.09.2019 •
Mathematics
Marty bought 4 new books today. he plans to read 2 of these while on vacation. how many combinations of 2 books from the group of 4 could he choose to read?
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Ответ:
Let's say all of the books were letters.
Books a, b, c, and d.
Different combinations include:
ab, ac, ad, bc, bd, and cd.
Ответ: