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# Help pls

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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