ormondegap2z4j3 ormondegap2z4j3
  • 08-02-2018
  • Mathematics
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How many​ one-to-one correspondences are there between two sets with 5 elements​ each?

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vremigi
vremigi vremigi
  • 08-02-2018
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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