Write the conjugate  of the complex number z. Then find z.z = 7 + 5i

A.  = 7 - 5i, z = 49 - 25i2
B.  = 7 - 5i, z = 74
C.  = 7 - 5i, z = 24
D.  = 7 - 5i, z = 49 - 25i


Answer: B

Mathematics

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