Ta có :
\(\frac{a}{b}=\frac{c}{d}\Rightarrow\left(\frac{a}{b}\right)^2=\left(\frac{c}{d}\right)^2=\frac{ac}{bd}=\frac{a^2}{b^2}=\frac{c^2}{d^2}=\frac{a^2+ac}{b^2+bd}=\frac{c^2-ac}{d^2-bd}\)
\(\Rightarrow\frac{a^2+ac}{c^2-ac}=\frac{b^2+bd}{d^2-bd}\) (đpcm)
Cho \(\frac{a}{b}=\frac{c}{d}CMR:\frac{a^2+ac}{c^2-ac}=\frac{b^2+bd}{d^2-bd}\)
Cho \(\frac{a}{b}=\frac{c}{d}CMR:\frac{a^2+ac}{c^2-ac}=\frac{b^2+bd}{d^2-bd}\)
Cho \(\frac{a}{b}=\frac{c}{d}\)
CMR:\(\frac{a^2+ac}{c^2-ac}=\frac{b^2+bd}{d^2-bd}\)
Cho \(\frac{a}{b}=\frac{c}{d}\). CMR \(\frac{a^2+ac}{c^2-ac}=\frac{a^2-bd}{c^2+bd}\)
Cho \(\frac{a}{b}=\frac{c}{d}\)
CMR \(\frac{a^2+ac}{c^2-ac}=\frac{b^2+bd}{d^2-bd}\)
#Giúp hộ nha♥
\(Cho\frac{a}{b}=\frac{c}{d}\)
CMR \(\frac{ac}{bd}=\frac{a^2+c^2}{b^2+d^2}\)
Cho tỉ lệ thức \(\frac{a}{b}=\frac{c}{d}\)
CMR \(\frac{ac}{bd}=\frac{a^2+c^2}{b^2+d^2}\)
Cho \(\frac{a}{b}=\frac{c}{d}\). Chứng minh rằng: \(\frac{a^2+ac}{c^2-ac}=\frac{b^2+bd}{d^2-bd}\)
Cho tỷ lệ thức \(\frac{a}{b}=\frac{c}{d}\) ( b,d khác 0 )
CMR : \(\frac{ac}{bd}=\frac{a^2+c^2}{b^2+d^2}\)
