tolong bantu dong guys, terimakasih!

<p>f:A-&gt;B dan g:B-&gt;C maka untuk gof:A-&gt;B-&gt;C sehingga</p><p>h:gof berarti h(x)=gof(x)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;h(A)=gof(A)=g(f(A))</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;h(3)=g(f(3))</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;h(3)=g(r)</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;h(3)=d</p><p>Jadi, h(3)=d</p><p>&nbsp;</p><p>&nbsp;</p>