(a) Let S be the set of all circles in the plane. Define f: S → [0, ∝) by f(C ) = the area of C, for all C ∈ S. Is f injective? ls f surjective?
(b) Let T be the set of all circles in the plane that are centered at the origin. Define g: T → (0, ∝) by g(C ) = the area of C, for all C ∈ T. ls g injective? l s g surjective?
We need at least 10 more requests to produce the solution.
0 / 10 have requested this problem solution
The more requests, the faster the answer.