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vyminh
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vyminh
Score
9
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Help!!
Hey guys, I need some help :(
I have this question related about permutation and combination. Can you help me please? :<
The 4-digits numbers are 5352, 5114, 5818,..., have 2 common characteristics. First, they start with
read more ..
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vyminh
Aug 5, 2016
#5
+9
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Thanks :3 :))
vyminh
Aug 5, 2016
#4
+9
0
Thank you :3
vyminh
Aug 5, 2016
+9 
