Question 246256
Hint: Convert the complex number {{{2+2i}}} into polar form {{{z=r(cos(x)+i*sin(x))}}} where 'r' is the magnitude and 'x' is the angle. From there, use a variation of <a href="http://en.wikipedia.org/wiki/De_Moivre%27s_formula#Applications">De Moivre's Theorem</a>. Let me know if this helps or not.