Question:

Let σ be the permutation in the symmetric group S5 given by
σ(1) = 2, σ(2) = 3, σ(3) = 1, σ(4) = 5, σ(5) = 4.
Define
N(σ) = {𝜏 ∈ S5 ∶ σ ∘ 𝜏 = 𝜏 ∘ σ}.
Then the number of elements in N(σ) is equal to _________.

Updated On: Oct 1, 2024
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Correct Answer: 6

Solution and Explanation

The correct answer is : 6.
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