CV3

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Evaluate \frac{1+i}{7-i}\,

= \frac{1+i}{7-i}\,\cdot\,\frac{7+i}{7+i} = \frac{7+i+7i+i^2}{49-i^2} = \frac{6+8i}{50}\,

= \frac{3}{25} + \frac{4}{25}i\,

Complex Variables

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