Cho\(A = \left\{ {1,2,3,4,5,6} \right\},B = \left\...

Câu hỏi: Cho\(A = \left\{ {1,2,3,4,5,6} \right\},B = \left\{ { - 2,0,3,5,9} \right\}\). Khi đó \(A \cup B = \)  

A

\(\left\{ { - 2,0,1,2,3,4,5,6,9} \right\}\)                          

B

\(\left\{ { - 2,0,9} \right\}\)

C

\(\left\{ {3,5} \right\}\)                                                  

D  \(\left\{ {1,2,4,6} \right\}\)