Which elements of N are invertible for the operation ∗?
(v) Which components of N are invertible for the activity ∗?
Just the component 1 in N is invertible for the activity * in light of the fact that 1 * 1/1 = 1
Which elements of N are invertible for the operation ∗?
(v) Which components of N are invertible for the activity ∗?
Just the component 1 in N is invertible for the activity * in light of the fact that 1 * 1/1 = 1