Let G be the group R under addition and let H be the group R^+ under multiplication. Suppose that f: G rightarrow H is an isomorphism such that f(4) = 4. (a) Determine f(8), f (20), f(0), f(2) and f(1).
Show transcribed image textLet G be the group R under addition and let H be the group R^+ under multiplication. Suppose that f: G rightarrow H is an isomorphism such that f(4) = 4. (a) Determine f(8), f (20), f(0), f(2) and f(1).