Các câu hỏi tương tự
a+b+c+d hac 0 va a/b+c+d=b/c+d+a=c/a+b+d=d/a+b+c
gia tri cua bieu thuc
(a+c/b+d)+(a+b/c+d)+(a+c/b+d)+(b+c/a+d)=?
Cho a+b+c+d khac 0 va a/b+c+d=b/a+c+d=c/a+b+d=d/a+b+c.
Tinh gia tri A= a+b/c+d + b+c/a+d + c+d/a+b + d+a/b+ch
Biet \(\frac{-a+b+c+d}{a}=\frac{a-b+c+d}{b}=\frac{a+b-c-d}{c}=\frac{a+b+c-d}{d}\)
Tinh gia tri bieu thuc \(\left(\frac{a}{b}+1\right).\left(\frac{b}{c}+1\right).\left(\frac{c}{d}+1\right).\left(1+\frac{d}{a}\right)\)
cho day ti so bang nhau a/b+c+d =b/a+c+d =c/a+b+d =d/b+c+a .Tinh gia tri bieu thuc M= (a+b/c+d) + (b+c /a+d ) + ( c+d /a+b) + (d+a/b+C)
chung minh rang tu ti le thuc a/b=c/d (a-b khac 0,c-d khac 0) ta co the suy ra ti le thuc a+b/a-b=c+d/c-d
chung minh rang tu ti le thuc a/b=c/d (a-b khac 0,c-d khac 0) ta co the suy ra ti le thuc a+b/a-b=c+d/c
ai giai nhanh va dung cho toi hieu toi se tich nguoi do
cho a+b+c+d khác 0 và a/b+c+d=b/a+c+d=c/a+b+d=d/a+b+c tim gia tri cua A=(a+b/c+d)+(b+c/a+d)+(c+d/a+b)+(d+a/c+d)
cho day ti so bang nhau
\(\frac{2a+b+c+d}{a}=\frac{a+2b+c+d}{b}=\frac{a+b+2c+d}{c}=\frac{a+b+c+2d}{d}\)
tinh gia tri bieu thuc m=\(\frac{a+b}{c+d}=\frac{b+c}{d+a}=\frac{c+d}{a+b}=\frac{d+a}{b+c}\)
Cho cac so a,b,c,d thoa man: \(\frac{a}{b+c+d}=\frac{b}{c+d+a}=\frac{c}{d+a+b}=\)
\(\frac{d}{a+b+c}\). Tinh gia tri bieu thuc:
P=\(\frac{a+b}{c+d}=\frac{b+c}{d+a}=\frac{c+d}{b+a}=\frac{d+a}{b+c}\)