if `f={(4,5),(5,6),(6,−4)}, g={(4,−4),(6,5),(8,5)}` then find `f+g`

If f={(1,4),(2,5),(3,6)} and g={(4,8),(5,7),(6,9)} , then gof is

If f = {(1,4), (2,5),(3,5) and g ={(4,8),(5,7),(6,9)}, then gof is

If f={(5,2),(6,3)},g={(2,5),(3,6)} write f@g

If f and g are two real functions defined by f={(a,1)(b,0),(c,8),(0,4)} and g={(a,5),(c,-3),(b,6)(0,2)} then dom ((sqrt(g))/(f)) is

If f:{5,6}rarr{2,3} and g:{2,3}rarr{5,6} are given by f={(5,2),(6,3)} and g={(2,5),(3,6)}, find fog.

If f:{5,\ 6}->{2,\ 3} and g:{2,\ 3}->{5,\ 6} are given by f={(5,\ 2),\ (6,\ 3)} and g={(2,\ 5),\ (3,\ 6)}, find fog .

Let f={(1,6),(2,5),(4,3),(5,2),(8-1),(10,-3)} and g={(2,0),(3,2),(5,6),(7,10),(8,12),(10,16)} . Find (i) dom (f+g) (ii) dom ((f)/(g)) .

If ={1,2,3,4,5,6},B={4,5,6,7,8},C={4,5,6}, then A nn B