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# complex numbers

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For z = -3 + 5i, evaluate  $z + \overline{z}$

Note: $\overline{z}$ denotes the conjugate of z.

Jun 13, 2021

Given $z=-3+5i$, what is the conjugate $\overline{z}$ of $z$?  Plug in $-3+5i$ for $z$ and the value of the conjugage $\overline{z}$ into the formula $z + \overline{z}$ then simplify to get the answer.