Bai 1:tim a,b biet a/b=4/5 va[a,b]=140
Bai 2:tim a,b biet a+b=42 va [a,b]=72
trinh bay cach giai gium cho
Tim so co 3 chu so abc biet a:b:c=1:3:2 va abc chia het cho 18
(Chu y abc co gach ngang o phia tren)
Mk biet qua nhung ko biet cach lam cac trinh bay chi tiet nha
Tim gia tri nho nhat
A=/x-2010/+/x-2011/
B=/x-1/+/x-2/+/x-3/+2011
C=5\(x^2\)+20x+2010
cac ban giai va cach trinh bay nhe
minh kich dung cho
giai giup minh voi
47-[(45.24-52.12):14
50-[(20-23):2+34]
102-[60:(56;54-3.5
TRINH BAY CACH GIAI GIUM MINH
238:236+51.32-72
151-291:288+12.3
trinh bay cach giai gium minh
230+320+430 va 3.2410
so sanh chung . trinh bay cach giai giup minh nha cac ban co gi minh tick
trinh bay cach ve tia p/x va tia toi truoc guong phang
tinh P= 1+2+3+4+....+104+105/1-2-3-4-.....-104+105
trinh bay ra
Tra loi va ghi cach giai dum minh nha.
(1-2/2*3)(1-2/3*4)(1-2/4*5)...(1-2/99*100)