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Combinatorics
medium
0:00.0
How many subsets does a set with
7
7
7
elements have?
A
2
7
2^{7}
2
7
B
7
2
7^2
7
2
C
(
7
)
!
(7)!
(
7
)!
D
2
(
7
)
2(7)
2
(
7
)
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