dancingstar1213 dancingstar1213

04-08-2020
Mathematics

contestada

What is the the product of (-1 - 3i) and it’s conjugate?

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valerieulbrich valerieulbrich

04-08-2020

Answer:

10

Step-by-step explanation:

(-1 - 3i)(-1 + 3i) = 1 - 3i + 3i -9i²

1 - 9i²; i² = -1, therefore 1 - 9(-1) = 1 + 9 = 10

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