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a: \(Ư\left(16\right)=\left\{1;2;4;8;16\right\}\)
\(Ư\left(24\right)=\left\{1;2;3;4;6;8;12;24\right\}\)
\(ƯC\left(16;24\right)=\left\{1;2;4;8\right\}\)
b: \(Ư\left(20\right)=\left\{1;2;4;5;10;20\right\}\)
\(Ư\left(32\right)=\left\{1;2;4;8;16;32\right\}\)
\(ƯC\left(20;32\right)=\left\{1;2;4\right\}\)
a) Ư(6) = {1;2;3;6}
Ư(9) = {1;3;9}
ƯC(6,9) = {1;3}
b) Ư(7) = {1;7}
Ư(8) = {1;2;4;8}
ƯC(7;8) = {1}
c) ƯC(4;6;8) = { 1;2}
a) Ư (15) = {1;3;5;15}
Ư (27) = {1;3;9;27}
ƯC (15; 27) = {1;3}
b) ƯC (16; 20; 30) = {1;2}
c) BC (25; 39) = {0;975;1950;…}
d) BC (100; 120; 140) = {0;4200;…}
a)Ư(6)={1;2;3;6}
Ư(9)={1;3;9}
Ư(6;9)={1;3}
b)Ư(7)={1;7}
Ư(8)={1;2;4;8}
ƯC(7;8)=1
c)Ư(4)={1;2;4}
Ư(6)={1;2;3;6}
Ư(8)={1;2;4;8}
ƯC(4;6;8)={1;2
ƯC
a) Ư (6) = {1; 2; 3; 6}
Ư (9) = {1, 3, 9}
ƯC (6, 9) = {1; 3}.
b) Ư (7) = {1; 7}
Ư (8) = {1; 2; 4; 8}
ƯC (7, 8) = {1}.
c) ƯC (4, 6, 8) = {1, 2}.
a) Ư (6) = {1; 2; 3; 6}, Ư (9) = {1, 3, 9}, ƯC (6, 9) = {1; 3}.
b) Ư (7) = {1; 7}, Ư (8) = {1; 2; 4; 8}, ƯC (7, 8) = {1}.
c) ƯC (4, 6, 8) = {1, 2}.
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)
GIẢI CHI TIẾT NỮA NHÉ!
\(\text{Ư}\left(6\right)=\left\{1;2;3;6\right\}\)
\(\text{Ư}\left(9\right)=\left\{1;3;9\right\}\)
\(\text{Ư}C\left(6;9\right)=\left\{3\right\}\)
Ư ( 15 ) = { 1;3;5;15 }
Ư ( 27 ) = { 1;3;9;27 }
ƯC ( 15,27 ) = { 1;3 }
Ư ( 16 ) = { 1;2;4;8;16 }
Ư ( 20 ) = { 1;2;4;5;10;20 }
Ư ( 30 ) = { 1;2;3;5;6;10;15;30 }
ƯC ( 16,20,30 ) = { 1;2 }
Ư ( 100 ) = { 1;2;4;5;10;20;25;50;100}
Ư ( 120 ) = { 1;2;3;4;5;6;8;10;12;15;20;30;60;120}
Ư ( 140 ) = { 1;2;5; 7;10;14;20;70;140 }
ƯC ( 100,120,140 ) = { 1;2;5;10;20 }
B ( 1 ) = { 0;1;2;3;......... }
B ( 5 ) = { 0;5;10;15;.........}
B ( 10 ) = { 0;10;20;30;........ }
BC ( 1,5,10 ) = { 0;5;10;15;........}
Câu 3a
6 = 2.3; Ư(6) = {1; 2; 3; 6}
16 = 2\(^4\); Ư(16) = {1; 2; 4; 8; 16}
6 = 2.3; 16 = 2\(^4\); ƯCLN(6; 16) = 2
ƯC(6; 16)= {1; 2}
a)Ư(6)={1,2,3,6}
Ư(16)={1,2,4,8,16}
ƯC(6,16)={1,2}
b)Ư(9)={1,3,9}
Ư(18)={1,2,3,6,9,18}
Ư(27)={1,3,9,27}
ƯC(18,27,9)={1,3,9}
c)Ư(14)={1,2,7,14}
Ư(42)={1,2,3,6,7,14,21,42}
ƯC(14,42)={1,2,7,14}
Câu 3b:
9 = 3\(^2\); Ư(9) = {1; 3; 9}
18 = 2.3\(^2\); Ư(18) = {1; 2; 3; 9; 18}
27 = 3\(^3\); Ư(27) = {1; 3; 9; 27}
18 = 2.3\(^2\); 27 = 3\(^3\); ƯCLN(18; 27) = 3\(^2\)
ƯC(18; 27) = {1; 3; 9}
Câu 3c
14 = 2.7; Ư(14) = {1; 2; 7; 14}
42 = 2.3.7; Ư(42) = {1; 2; 3; 6; 7;14; 21; 42}
14 = 2.7; 42 = 2.3.7; ƯCLN(14; 42) = 2.7 = 14
ƯC(14; 42) = {1; 2; 7; 14}