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famousshorty
07.07.2019 •
Mathematics
What is the sum of the complex numbers below?
(5+7i)+(-2+6i)
a. -3 +13i
b. 3+13i
c. -3-13i
d. 3-13i
Solved
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Ответ:
B
Step-by-step explanation:
Given
(5 + 7i) + (- 2 + 6i ) ← remove parenthesis and collect like terms
= 5 + 7i - 2 + 6i
= 3 + 13i → B
Ответ:
The answer is B. 3+13i
Step-by-step explanation:
1. (5+7i)+(-2+6i)
Remove parentheses
2. 5+7i-2+6i
Subtract
Collect the like terms
3. 5-2+7i+6i
4. 3+13i
Hope this helps!!!
please mark as brainliest:)
Ответ:
Eee:
Step-by-step explanation: