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21. Combinatorics and Probability
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21. Combinatorics and Probability
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21. Combinatorics and Probability / Factorials / Problem 1
Problem 1
Consider the given factorial expression and evaluate it.
(
7
n
+
1
)
!
(
7
n
)
!
\frac{(7n +1)!}{(7n)!}
(
7
n
)!
(
7
n
+
1
)!
A
7
n
7n
7
n
B
7
n
−
1
7n-1
7
n
−
1
C
7
n
+
1
7n+1
7
n
+
1
D
7
n
!
7n!
7
n
!
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