Giải :
Ta có :
60 = 22 . 3 . 5
45 = 32 . 5
BCNN ( 60 ; 45 ) = 22 . 32 . 5 = 180
BC ( 60 ; 45 ) = B ( 180 ) = { 0 ; 180 ; 360 ; 540 ; 720 ; 900 ; ...}
TICK NHA NGUYỄN HẠNH NGUYÊN
Ta có:60=22.3.5
45=32.5
=>BCNN(60,45)=22.32.5=180
=>BC(60,45)=B(180)={0,180,360,..........}
ta có:
60=22.3.5
45=32.5
=> BCNN(60,45)=22.32.5=180
=> BC(60;45)=B(180)
={0;180;360;540;720;...}
Phân tích: 60=2^2.3.5
45=3^2.5
BCNN(60;45)=2^2.3^2.5=180
BC(60;45)=0;180;360;540;720;900;....
Tick nha
60= 22 . 3 . 5
45 = 32.5
BCNN (60;45) = 22 . 32 . 5 = 49
BC ( 60;45) = B (49) e { 0;49;98;147;...}
Nhớ tick mình nhé !
Ta có:
60 = 23.3.5
45 = 32.5
=> BCNN ( 60;45) = 23.32.5 = 360
=> BC(60;4) = {0;360;720;1440;...}