ta có : a/b=b/c=c/a=a/a=b/b=c/c=1
=> a=b=c=1
A=149*651/1100
A=1*651/1
A=651
ta có : a/b=b/c=c/a=a/a=b/b=c/c=1
=> a=b=c=1
A=149*651/1100
A=1*651/1
A=651
cho biết a/b=b/c=c/a;a+b+c khac 0. Tinh gia tri bieu thức A=a^49*6^51/100
cho a b c khac 0 va a-b-c=0 tinh gia tri bieu thuc A=(1-c/a) (1-a/b) (1+b/c)
cho a,b,c la 3 so khac 0 va a+b+c# 0
Thỏa mãn : a/b+c = b/c+a = c/a+b
Tinh gia tri bieu thuc : P = b+c/a + c+a/b + a+b/c
cho 3 so a,b,c khac 0 va thoa man a+b-c/c=a+c-b/b=b+c-a/a
tinh gia tri bieu thuc P=(a+b)(b+c)(c+a)=abc
cho a,b,c khac 0 thoai man ab/a+b=bc/b+c=ca/c+a
tinh gia tri bieu thuc m=ab+bc+ca/a^2+b^2+c^2
Cho 3 so a,b,c khac 0 thoa man ab/a+b=bc/b+c=ca/c+a
Tinh gia tri cua bieu thuc M=ab+bc+ca/a^2+b^2+c^2
Cho a.b,c la 3 so khac 0 thoa man : ab + a + b / a + b = bc + b + c / b + c = ca + c + a/ c + a ( voi gia thiet cac ti so deu co nghia)
Tinh gia tri bieu thuc M = ab+bc+ca+2017/ a^2 + b^2 + c^2 + 2017
cho 3 so thuc abc khac 0 va mot doi so khac nhau thoa man
a2 . ( b+ c ) = b2 . ( a + c ) = 2018
Tinh gia tri bieu thuc H = c2 . ( a+b)
ban nao giup minh voi cho a/3=b/6=c/7.Tinh gia tri bieu thuc C=a-2b+c/a+b-2c