suewignall
17.10.2019 •
Mathematics
:discrete math
fact: let s be a finite set with s=n.
then ps=2 n.
let s 1,2,3, 4,5, 6,7, 8,9}
a) how many subsets does s have in total?
b) how many proper subsets does s have?
c) how many subsets of s contain exactly 8 elements?
d) how many subsets of s contain the element 1?
e) how many subsets a of s satisfy the property that an1,2 ?
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Ответ:
Step-by-step explanation:
3x²+3xy+y²
3×5²+3×5×4+4²
3×25+60+16
75+60+16
151
hope it help u