Thread: even or odd permutation

plz help me with this

examine whether the following permutation is even or odd

1 2 3 4 5 6 7 8 9
f=
2 5 4 3 6 1 7 9 8

Originally Posted by chhatrashal

plz help me with this

examine whether the following permutation is even or odd

1 2 3 4 5 6 7 8 9
f=
2 5 4 3 6 1 7 9 8

We can write this as disjoint cycles

f=(1,2,5,6)(3,4)(8,9)=(5,6)(2,6)(1,6)(3,4)(8,9)

Since there are 5 permutations it is odd

Good luck.