Question 3Given that the minimum value of $(\tan^{-1}x)^{2048}+\left(\tan^{-1}\frac1x\right)^{2048}$ is $\frac{\pi^a}{b}$, where $a$ and $b$ are rational numbers, and $x>0$, find the value of $\log_2\left(\frac ba\right)$.1013202640844085None of the above