# How do you find the complex conjugate of number -1 + 2sqrt2i?

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Mar 8, 2018

Complex conjugate of $- 1 + 2 \sqrt{2} i$ is $- 1 - 2 \sqrt{2} i$

#### Explanation:

Complex conjugate of any complexnumber $a + b i$ is $a - b i$. In facct they are conjugate off each other. This means the sign of imaginary part changes from plus to minus or minus to plus.

Hence, complex conjugate of $- 1 + 2 \sqrt{2} i$ is $- 1 - 2 \sqrt{2} i$

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