(Solved): Write the expression in rectangular form x+yi and in exponential form re iA [2(cos9+isin9 ...

Write the expression in rectangular form $$x+yi$$ and in exponential form re $${}^{iA}$$ $${\left[2\left(\cos \frac{?}{9}+i\sin \frac{?}{9}\right)\right]}^3$$ The rectangular form of the given expression is and the exponential form of the given expression is (Simplify your answers. Type exact answers, using $$?$$ as needed. Use integers or fractions for any numbers in the expressions)