Các câu hỏi tương tự
cho \(\frac{a}{b}=\frac{c}{d}cmr\frac{3a+5b}{3a-5b}=\frac{3c+5d}{3c-5d}\)
Cho \(\frac{a}{b}=\frac{c}{d}\). CMR: \(\frac{a}{3a+b}=\frac{c}{3c+d}\)
Cho\(\frac{3a+5b}{2a-b}=\frac{3c+5d}{2c-d}CMR\frac{a}{b}=\frac{c}{d}\)
Cho\(\frac{3a+5b}{2a-b}=\frac{3c+5d}{2c-d}CMR\frac{a}{b}=\frac{c}{d}\)
\(cho:\frac{2a+13b}{3a-7b}=\frac{2c+13d}{3c-7d}.CMR:\frac{a+b}{b}=\frac{c+d}{d}\)
CMR a=b=c=d
\(\frac{a}{3b}=\frac{b}{3c}=\frac{c}{3d}=\frac{d}{3a}\)
và a+b+c+d khác 0
Cho \(\frac{a}{b}=\frac{c}{d}\)
CMR \(\frac{3a+7b}{3c+7d}=\frac{3a-7b}{3c-7d}\)
A)\(CMR:\frac{a+2c}{b+2d}\)\(=\frac{3a+c}{3b+d}\)
B)\(CMR:\frac{a-c}{a+3c}=\frac{b-d}{b+3d}\)
A)\(CMR:\frac{a+2c}{b+2d}\)\(=\frac{3a+c}{3b+d}\)
B)\(CMR:\frac{a-c}{a+3c}=\frac{b-d}{b+3d}\)