sendo A= { 4 -5 10 5 } e B= {9 -3 6 5} determine o valor de A+B?

Realizando a soma termo a termo, temos que:

\[\eqalign{ & A + B = \left\{ {4 + 9,{\text{ }} - 5{\text{ + }}\left( { - 3} \right),{\text{ 1}}0 + 6,{\text{ }}5 + 5} \right\} \cr & A + B = \left\{ {13,{\text{ }} - 8,{\text{ 16}},{\text{ 10}}} \right\} }\]

Portanto, resulta que \(\boxed{A + B = \left\{ {13,{\text{ }} - 8,{\text{ 16}},{\text{ 10}}} \right\}}\).