Các câu hỏi tương tự
tim bo ba so (a;b;c) thoa man: a+b-1/c = b+c-2/a = c+a+3/b = 2/a+b+c
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
tim 3 so a,b,c khac nhau va khac 0 thoa man : a/(b+c) = b/(a+c) = c/(a+b)
cho 4 so tu nhien a b c d thoa man b+c+d/a=a+c+d/b=d+a+b/c=a+b+c/d=k Tim k
cho a,b,c la cac so nguyen thoa man cac dieu kien: a+b-c=15; a-b+c=21; -a+b+c=-2015. Tim cac so nguyen do.
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 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
tim bo so a,b,c thoa man a:b:c=2:4:5 va a+2b+c=75