Question

Answer 1

`@` `\text {Ans}`

`\downarrow`

`a)`

`A = {11; 12; 13; 14; 15}`

`b)`

`B = {1; 2; 3; 4; 5; 6}`

`c)`

`C = {12; 13; 14; 15; 16; 17; 18; 19}`

`d)`

`D = {1; 2; 3; 4; 5; 6; 7; 8; 9; 10}`

Answer 2

Bài 40:

a) A = \(\left\{11;12;13;14;15\right\}\)

b) B = \(\left\{1;2;3;4;5;6\right\}\)

c) C = \(\left\{12;13;14;15;16;17;18;19\right\}\)

d) D = \(\left\{1;2;3;4;...;8;9;10\right\}\)

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