Respuesta :
13 + 3i
15 - 6i - 2 + 9i → Sum
collect like terms
(15 - 2) + ( - 6i + 9i) =13 + 3i
The sum of 15 – 6i and –2 + 9i is 13 + 3i , Option 1 is the correct answer
What is Imaginary Number ?
An imaginary number is defined as the multiple of i and is the square root of -1.
i = √-1
To add or subtract an imaginary number , just add or subtract the corresponding real and imaginary parts.
It is given in the question to determine
the sum of 15 – 6i and –2 + 9i
To determine we have to add the real 15 and -2
and the imaginary -6i and +9i
So (15 – 6i) +( –2 + 9i) = 15 + (-2) + (-6i) + 9i
13 + 3i
Therefore the sum of 15 – 6i and –2 + 9i is 13 + 3i , Option 1 is the correct answer.
To know more about Imaginary Number
https://brainly.com/question/6748860
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