Question

182. Let D4 = y^4 = e and x^2=e
and xy, xy2, xy?
be the dihedral group of order 8. Then, y^-42 is equal
to
(a) y
(b) y
19
2
(c) y
(d) e​

Answer 1

Answer:

2 c y

Step-by-step explanation:

this is the right answer