Ta có: \(\frac{x+5}{x-5}=\frac{b+6}{b-6}\)
\(\Leftrightarrow\left(a+5\right)\left(b-6\right)=\left(a-5\right)\left(b+6\right)\)
\(\Leftrightarrow ab-6a+5b-30=ab+6a-5b-30\)
\(\Leftrightarrow16a=10b\)
\(\Leftrightarrow\frac{a}{b}=\frac{10}{12}=\frac{5}{6}\left(đpcm\right)\)
59. Cho \(\frac{a+5}{a-5}=\frac{b+6}{b-6}\left(a\ne5;b\ne6\right)\). Chứng minh rằng \(\frac{a}{b}=\frac{5}{6}\)
Cho \(\frac{a+5}{a-5}=\frac{b+6}{b-6}\left(a\ne5;b\ne6\right).\)Chứng minh rằng \(\frac{a}{b}=\frac{5}{6}\)
Cho \(\frac{a+5}{a-5}=\frac{b+6}{b-6}\left(a\ne5;b\ne6\right)\) Chứng minh rằng \(\frac{a}{b}=\frac{5}{6}\)
\(Cho\frac{a+5}{a-5}=\frac{b+6}{b-6}\left(a\ne5,b\ne6\right).Cmr\frac{a}{b}=\frac{5}{6}\)
Cho \(\frac{a+5}{a-5}=\frac{b+6}{b-6}\left(a\ne5;b\ne6\right)CMR:\frac{a}{b}=\frac{5}{6}\)
cho \(\frac{a+5}{a-5}=\frac{b+6}{b-6}\)\(\left(a\ne5;b\ne6\right)\)tìm \(\frac{a}{b}\)
Cho \(\frac{a+5}{a-5}=\frac{b+6}{b-6}\) \(\left(a\ne5,b\ne6\right)\). Như vậy tỉ số \(\frac{a}{b}\) bằng .....
Cho \(\frac{a+5}{a-5}=\frac{b+6}{b-6}\) ( với \(a\ne5\text{ , }b\ne6\) )
Tính tỉ số \(\frac{a}{b}\)
Cho \(\frac{a+5}{a-5}=\frac{b+6}{b-6}\) ( \(a\ne5,b\ne6\) ) . Tính tỉ số \(\frac{a}{b}\).
