# What is complex conjugate of 2 - sqrt(2i)?

Jul 31, 2018

$2 + \sqrt{2} i$

#### Explanation:

$\text{Given a complex number } z = x \pm y i$

"then the complex conjugate is "x color(red)(∓)i

$\text{note that the real part remains unchanged while the sign}$
$\text{of the imaginary part reverses}$

$\text{conjugate of "2-sqrt2i" is } 2 \textcolor{red}{+} \sqrt{2} i$