Question

If f = {(2,3), (4,5), (6,7)} and gof = {(2,4), (4,6), (6,8)}, then using arrow diagram find
g
-1
.

Answer 1

Answer:

Dom(gof)=dom(f)={1,3,4}.

(gof)(1)=g{f(1)}=g(2)=3,

(gof)(3)=g{f(3)}=g(5)=1

(gof)(4)=g{f(4)}=g(1)=3

∴gof={(1,3),(3,1),(4,3)}.

Step-by-step explanation:

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