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2012 AIME II Problems/Problem 6

Revision as of 15:07, 31 March 2012 by Williamhu888 (talk | contribs)

Problem 6

Let $z=a+bi$ be the complex number with $\vert z \vert = 5$ and $b > 0$ such that the distance between $(1+2i)z^3$ and $z^5$ is maximized, and let $z^4 = c+di$. Find $c+d$.

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