Các câu hỏi tương tự
tim bo so a,b,c thoa man a:b:c=2:4:5 va a+2b+c=75
Tim cac so a, b, c khac 0 thoa man: a + b - 2 / c = b + c +1 / a = c + a +1 / b = a + b +c / 2
cho ba so a,b,c thoa man 0be honhoac bang a be hon hoac bang b+1 be hon hoac bang c+2 va a+b+c=1 tim gia tri nho nhat cua c
cho ba so duong a,b,c thoa man: a/5=b/7=c/3 va a^2+b^2-c^2=585 hoi a+b+c=
a) cho 2 stn a va b voi a<b thoa man 3(a+b) =5(a-b)
tim thuong cua 2 so
b) Tim cac so Nguyen Duong a, b, c biet rang : a3-b3-c3 =3abc va a2=2(b+c)
tim a,b,c khac 0 thoa man :a+b+c=(ab+ac)/2=(bc+ba)/3=(ca+cb)/4
Cho a,b,c la ba so thuc duong thoa man (a^2).(b+c)=(b^2).(a+c)=20172018.tinh (c^2).(a+b)
tim 3 so a,b,c khac nhau va khac 0 thoa man : a/(b+c) = b/(a+c) = c/(a+b)
cho a,b,c la ba so thuc ,thoa man a+b-c/c=b+c-a/a=c+a-b/b. tinh (1+b/a)(1+a/c)(1+c/b)