MarkeseD381767 MarkeseD381767

30-10-2022
Mathematics

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Find the product of −4−5i and its conjugate. The answer is a+bi where

Find the product of 45i and its conjugate The answer is abi where class=

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NishthaQ34531 NishthaQ34531

30-10-2022

Answer:

a = 41

b = 0

Explanation:

Given

-4 - 5i

The conjugate is:

-4 + 5i

Their product is:

(-4 - 5i)(-4 + 5i) = (-4)(-4) + (-4)(5i) - (5i)(-4) - (5i)(5i)

= 16 - 20i + 20i + 25

= 16 + 25

= 41

OR

41 + 0i

Where a = 41, b = 0

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