What is the sum of 12 – 5i and –3 + 4i? –16 + 63i 9 – i 9 – 9i 15 – 9i.

Answers

Answer 1

Answer: 9 - i

Explanation: Just took the quiz!

Answer 2

The sum of the complex number 12 – 5i and –3 + 4i is 9 - i.The explaination of the equation is given below.

How to sum complex number?

The sum of 12 – 5i and –3 + 4i can be done as follows:

Therefore,

12 - 5I + (-3 + 4i)

12 - 5i - 3 + 4i

Hence,combine like terms

12 - 3 - 5i + 4i

Finally,

9 - i

Complex Number is a number that consists both real part and imaginary part. It can be generally written in equation z=2a+bi where  is real part while  is imaginary part.

Since complex number consists two parts - real and imaginary, we can say that all real numbers and imaginary numbers are indeed complex number.

A complex number is a number that can be written in the form a + bi where a and b are real numbers that are not equal to 0. For example, 1 + 2i is a complex number and so is -5 - i .In other words, a complex number is the sum or difference of a real number and an imaginary number.

Therefore, The sum of the complex number 12 – 5i and –3 + 4i is 9 - i.The explaination of the equation is given below.

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Explanation:

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The above question wants to assess your writing ability and for that reason, it is not right for me to answer it for you, but I will show you how to answer it.

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