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For which whole number n is ⁿP₂ = 42? | StemPy Lab
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For which whole number n is ⁿP₂ = 42?
Mathematics
Easy
High School (11–12)
Algebra › Permutations and Combinations
Created by
StemPy Lab
For which whole number
n
n
n
is
n
P
2
=
42
{}^nP_2 = 42
n
P
2
=
42
?
21
21
21
8
8
8
7
7
7
6
6
6
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