Bài 135 trang 53 SGK Toán 6 tập 1

 Viết các tập hợp:

a) \(Ư (6), Ư (9), ƯC (6, 9)\);

b) \(Ư (7), Ư (8), ƯC (7, 8)\);

c) \(ƯC (4, 6, 8)\).

Lời giải

a) \(Ư (6) = \left\{ {1;2;3;6} \right\}\),

    \(Ư (9) =\left\{ {1;3;9} \right\}\),

    \(ƯC (6, 9) = \left\{ {1;3} \right\}\). 

b) \(Ư (7) = \left\{ {1;7} \right\}\),

    \(Ư (8) = \left\{ {1;2;4;8} \right\}\),

    \(ƯC (7, 8) = \left\{ 1 \right\}\).

c) \(Ư (4) = \left\{ {1;2;4} \right\}\),

    \(Ư (6) = \left\{ {1;2;3;6} \right\}\),

    \(Ư (8) = \left\{ {1;2;4;8} \right\}\),

    \(ƯC (4, 6, 8) = \left\{ {1;2} \right\}\).


Quote Of The Day

“Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.”