Question

Prove that, |Z|² = Z × Zbar ​

Answer 1

Answer:

4

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Hope it helps to u

Answer 2

Answer:

z is real iff z = bar z

Let z = x + iy

z = bar z

⇒ x + iy = x – iy

⇒ 2iy = 0 ⇒ y = 0

⇒ z is real.

z is real iff z = bar z

Step-by-step explanation:

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