Let f={(3,1), (9,3), (12,4)} and g={(1,3), (3,3), (4,9), (5,9)}. Show that gof and fog are both defined, Also, find fog and gof.

Let f={(3,1), (9,3), (12,4)} and g={(1,3), (3,3), (4,9), (5,9)}. Show that gof and fog are both defined, Also, find fog and gof.

Matching exercise

Match the items on the right to the items on the left.

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