Q. Consider two positive numbers $a$ and $b$. If arithmetic mean of $a$ and $b$ exceeds their geometric mean by $\frac{3}{2}$ and geometric mean of $a$ and $b$ exceeds their harmonic mean by $\frac{6}{5}$, then the absolute value of $\left(a^{2}-b^{2}\right)$ is equal to
Sequences and Series
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