Let $f:\{1,3,4\} \to \{1,2,5\} $ and $g:\{1,2,5\}\to\{1,3\}$ be given by $f = \{(1, 2), (3, 5), (4, 1)\}$ and $ g = \{(1, 3), (2, 3), (5, 1)\}$. Write down $gof$.

Question

$\begin{array}{1 1} gof =\{(1,4),(3,1),(4,3)\} \\ gof =\{(1,4),(3,1),(4,3)\} \\ gof =\{(1,3),(3,1),(4,5)\} \\gof =\{(1,3),(3,2),(4,3)\} \end{array} $