dkerschen09
dkerschen09 dkerschen09
  • 12-11-2020
  • Mathematics
contestada

If 5 + 6i is a root of the polynomial function f(x), which of the following must also be a root of f(x)?​

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xKelvin
xKelvin xKelvin
  • 12-11-2020

Answer:

5-6i

Step-by-step explanation:

The complex conjugate root theorem states that if (a+bi) is a root, then (a-bi) must also be a root and vice versa.

We know that (5+6i) is a root.

Then by the above theorem, (5-6i) must also be a root.

Hence, our solution is (5-6i).

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Yabol
Yabol Yabol
  • 17-01-2021

The answer is (B).

Took the review test and passed.

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