Mathematics, 25.09.2019 03:00 ValeryGi3721
Agrid with 3 rows and 52 columns is tiled with 78 identical 2x1 dominoes. how many ways can this be done such that exactly two of the dominoes are vertical?
any idea?
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Agrid with 3 rows and 52 columns is tiled with 78 identical 2x1 dominoes. how many ways can this be...
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