If A and B are square matrices ofthe same order such that (A + B)(A - B) = A2 - B2, then (ABA-1)2 is equal to
B2
I
A2B2
A2
On the set of integers Z, define f : Z Z as f(n) = , then 'f' is
injective but not surjective
neither injective nor surjective
surjective but not injective
bijective
C.
surjective but not injective
Here,we see that forevery odd values of z, it will give zero. It means that ite is a many one function.
For every even values of z, we will get a set of integers (). So, it is onto. Hence, it is surjective but not injective