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Marat540 [252]
3 years ago
10

How many​ one-to-one correspondences are there between two sets with 5 elements​ each?

Mathematics
1 answer:
Fittoniya [83]3 years ago
7 0
1st element can be matched with 5
2nd element can be matched with 4
3rd element can be matched with 3
etc.
Total number of correspondences = 5*4*3*2*1 = 120
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