Write an expression for the sum of a complex number a + bi and its complex conjugate. Thanks for any help!
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Originally Posted by live_laugh_luv27 Write an expression for the sum of a complex number a + bi and its complex conjugate. Thanks for any help! Let $\displaystyle z=a+bi$ and $\displaystyle \bar{z}=a-bi$ then $\displaystyle z+\bar{z}=\left(a+bi\right)+\left(a-bi\right)=2a=2\Re(z)$
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