Question

viết các tập hợp:Ư(20),B(1),B(9)

Answer 1

Ta có:

Ư(20) = { 1;2;4;5;10;20 }

B(1) = {0;1;2;3;...}

B(9) = { 0;9;18;27;36;45;...}

Chúc bn hok tốt

Answer 2

Ư(20) = {-1; 1; -2; 2; -4; 4; -5; 5; -10; 10; -20; 20}

B(1) = {...; -3; -2; -1; 0; 1; 2; 3; ...}

B(9) = {...; -18; -9; 0; 9; 18; ...}

Answer 3

Ư(20) = { 1;2;4;5;10;20 }

B(1)={ 0;1;2;3;4;5;....;n }

B(9) = { 0;9;18;27;36;45;54;63;72;91;90;...}

Answer 4

Đáp án :

Ư( 20 ) = { 1 ; 2 ; 4 ; 5 ; 10 ; 20 }

B ( 1 ) = { 0 ; 1 ; 2 ; 3 ; ... }

B ( 9 ) = { 0 ; 9 ; 18 ; 27 ; 36 ; 45 ; ... }

Answer 5

\(U\left(20\right)=\left\{\pm1,\pm2,\pm5,\pm10,\pm20\right\}\)

\(B\left(1\right)=\left\{0,\pm1,\pm2,.....\right\}\)

\(B\left(9\right)=\left\{\pm1,\pm3,\pm9\right\}\)

Answer 6

Ư(20) = {1 ; 2 ; 4 ; 5 ; 10 ; 20}

B(1) ={1 ; 2 ; 3 ;............}

B(9) = {9 ; 18 ; 27 ; ..........}

Học tốt!