SOLUTION: Hi The Best Teachers online! Can you help me on this question please? Find the number of elements in the set {σ ε S5 | σ(2) = 5}. Thank you God bless!

Algebra ->  Complex Numbers Imaginary Numbers Solvers and Lesson -> SOLUTION: Hi The Best Teachers online! Can you help me on this question please? Find the number of elements in the set {σ ε S5 | σ(2) = 5}. Thank you God bless!       Log On


   

Question 1137636: Hi The Best Teachers online! Can you help me on this question please? Find the number of elements in the set {σ ε S5 | σ(2) = 5}. Thank you God bless!
Answer by ikleyn(52780) About Me  (Show Source):
You can put this solution on YOUR website!
.

            Although the post does not decipher all notations,  I interpret it in this way : 

        How many are there permutations of 5 elements that place the element "2" into position "5" ?


The answer is 4! = 4*3*2*1 = 24.

You are free to make all possible permutations of remaining 4 elements in remained 4 positions.


Answered and solved.