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tangare [24]
4 years ago
6

Can somebody please help me ?? :)

Mathematics
1 answer:
sashaice [31]4 years ago
5 0

Answer:

first option

Step-by-step explanation:

Multiplying a complex number by its conjugate gives a real number and thus removes imaginary numbers in the denominator.

If z = a + bi then its conjugate is a - bi and their product

(a + bi)(a - bi) → where a and b are real

= a² + b² ← a real number

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