Question

if f={(2,3),(4,5)} and g={(3,5),(5,2)}.find gof​

Answer 1

Step-by-step explanation:

Correct option is

B

{(1,3),(3,1),(4,3)}

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)}.