$\sqrt{0.01+\sqrt{0.0064}}=?$

If $\sqrt{\frac{x}{169}} = \frac{54}{39}$,then $x$ is equal to

Find the value of $\sqrt{6492304}$.

$[(5 \sqrt{7}+\sqrt{7}) \times (4 \sqrt{7}+8 \sqrt{7})]-(19)^{2} = ?$

$\sqrt{33124} \times \sqrt{2601} - (83)^{2} = (?)^{2} + (37)^{2}$

If $a = \frac{\sqrt{5} + 1}{\sqrt{5} - 1}$ and $b = \frac{\sqrt{5} - 1}{\sqrt{5} + 1}$,then the value of $\frac{a^{2} + ab + b^{2}}{a^{2} - ab + b^{2}}$ is