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Dapat disimpulkan bahwa :1) Penjumlahan f dan g
(f+g)(x) = f(x) + g(x)
Domain Df+g = Df Π Dg
2) Pengurangan f dan g
(f-g)(x) = f(x) - g(x)
Domain Df-g = Df Π Dg
3) Perkalian f dan g
(f×g)(x) = f(x) × g(x)
Domain Df×g = Df Π Dg
4) Pembagian f dan g
(f/g)(x) = f(x)/g(x)
Domain Df/g = Df Π Dg - {x/g(x) = 0}