-3 = { 1, -1 , 3, -3 }
6 = { 1, 2, 3, 6 }
11 = { 1, 11 }
-1 = { 1, -1 }
nhớ k cho mình nha
-3 la -9
6 la 36
11 la 11
-1 la -1
Trả lời :
\(-3\)\(\in\)\(\left(1;-1;3;-3\right)\)
\(6\)\(\in\)\(\left(1;2;3;6\right)\)
\(11\)\(\in\)\(\left(1;11\right)\)
\(-1\)\(\in\)\(\left(1;-1\right)\)
Ư(-3) = {± 1; ± 3}
Ư(6) = {± 1; ± 2; ± 3; ± 6}
Ư(11) = {± 1; ± 11}
Ư(-1) = {± 1}