Mathematics - Sequence & Series Question with Solution | TestHub

As the number of terms are odd (7) let $r$, be the common ratio So terms can be taken as $\frac{a}{r^3},\frac{a}{r^2},\frac{a}{r},a,ar,a{r}^2,a{r}^3$

∴ Product of the term $=a^7$

$=3^7$ as $\left(t_4=a=3\right)$