Show that the function \( f \) on \( A=R-\left\{\frac{2}{3}\right\}...

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Show that the function \( f \) on \( A=R-\left\{\frac{2}{3}\right\} \), defined as \( f(x)=\frac{4 x+3}{6 x-4} \) is
\( \mathrm{P} \) one-one and onto. Hence, find \( f^{-1} \).

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