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Confidence In Complex

Algebra Level 3

$z = (1+cos2α)+isin2α$ , where $α\in \left( \frac { \pi }{ 2 } ,\frac { 3\pi }{ 2 } \right)$ then $|z|$ is

-2sinα 2cosα -2cosα 2sinα

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by Mayank Singh

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