Simplify: $\displaystyle \frac{{{9}^{{\frac{{1}}{{3}}}}}}{{{9}^{{\frac{{1}}{{6}}}}}}$

Give an exact answer in both rational exponent form and nth root notation.

Rational Exponents: Preview Question 6 Part 1 of 3  

nth root notation:    Preview Question 6 Part 2 of 3      Answer in the form $\displaystyle {\left({\sqrt[{{x}}]{{{y}}}}\right)}^{{z}}$ 

Decimal Approximation:  Preview Question 6 Part 3 of 3      Round your answer to 3 decimal places