MCQOPTIONS
Saved Bookmarks
| 1. |
Suppose P(h) is a group of permutations and identity permutation(id) belongs to P(c). If ϕ(c)=c then which of the following is true? |
| A. | ϕ∈P(h) |
| B. | ϕ⁻¹∈P(h) |
| C. | ϕ⁻²∈P(h) |
| D. | None of the mentioned |
| Answer» C. ϕ⁻²∈P(h) | |