The simplified expression of (7 + 9i)(8 - 10i) is 146 + 2i
<h3>How to simplify the expression?</h3>
The expression is given as:
(7 + 9i)(8 - 10i)
Expand the bracket
7 * 8 + 9i * 8 -7 * 10i - 9i * 10i
Evaluate the products
56 + 72i -70i - 90(i²)
Evaluate the difference
56 + 2i - 90(i²)
In complex numbers;
i² = -1
So, we have:
56 + 2i - 90(-1)
Evaluate
56 + 2i + 90
Add the like terms
146 + 2i
Hence, the simplified expression of (7 + 9i)(8 - 10i) is 146 + 2i
Read more about complex numbers at:
brainly.com/question/10662770
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Answer:
nkvndkfhbkbhjbdhbhbfdhbkxcx
Step-by-step explanation:
vchdksbkfgbkbkhbdhbbhbshbfhklkgfsfg
Answer:
X×Y×Z%/100
Step-by-step explanation:
using formula
si=p×t×r%/100
Answer:
your answer will be<u> A.85°</u>
Step-by-step explanation:
hope it helps you
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