સાદું રૂપ આપો. \(\rm \left(\frac{16a^\frac{4}{3} b^\frac{-5}{6}}{a^\frac{-2}{3}b^\frac{ 1}{6}} \right)^{\frac{1}{2}}\) .
1
\(\rm \frac{4a}{b^\frac{1}{2}}\)
2
\(\rm \frac{a}{b^\frac{1}{2}}\)
3
\(\rm \frac{4a}{b^2}\)
4
\(\rm \frac{1}{(ab)^\frac{1}{2}}\)