IP2 U12 HOT Q1

In triangle \(ABC\), \(a\), \(b\) and \(c\) are the opposite sides of the interior angles \(A\), \(B\) and \(C\), respectively.

It is given that \(3a = 2b\), find the value of \(\frac{2 \sin^2 B - \sin^2 A}{\sin^2 A}.\)