Write the conjugate  of the complex number z. Then find z.z = 4 + 2i

A.  = 4 - 2i, z = 16 - 4i
B.  = 4 - 2i, z = 20
C.  = 4 - 2i, z = 12
D.  = 4 - 2i, z = 16 - 4i2


Answer: B

Mathematics

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