Does this make sense?

[sk381]

a^(1/(2)^1/2))

that is a raised to the power 1/underroot(2)

[ZioX]

Yes, because it's just $a^{\frac{\sqrt{2}}{2}}$. Although, underroot doesn't make much sense.

How do you get inline TeX?

[HallsofIvy]

use "itex" instead of "tex"