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

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

 Jan 6, 2021
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We're looking for (-3+5i)(-3-5i) which is 9+25=34.

For any z in the form a+bi, z multiplied by its conjugate will be equal to a^2+b^2.

:D

 Jan 6, 2021

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