A mapping f : A → B defined as \(f(x)=\frac{2 x+3}{3 x+5}, x \in A\) If f is to be onto, then what are A and B equal to ?
1
\(A=R \backslash\left\{-\frac{5}{3}\right\} \text { and } B=R \backslash\left\{-\frac{2}{3}\right\}\)
2
\(A=R \text { and } B=R \backslash\left\{-\frac{5}{3}\right\}\)
3
\(A=R \backslash\left\{-\frac{3}{2}\right\} \text { and } B=R \backslash\{0\}\)
4
\(A=R \backslash\left\{-\frac{5}{3}\right\} \text { and } B=R \backslash\left\{\frac{2}{3}\right\}\)