Question

Select the correct answer from the choices given

(13 + 4i) +n=0


What is n?


0

1

0 -13 + 4i

-13 - 4i

Answer 1

Option D.

Explanation:

(13 + 4i) is a complex number which has a real part 13 and 4 as an imaginary part. Value of 'i' is considered as
`√(-1)`.

Now the equation given in the question is (13 + 4i) + n = 0

which represents a complex number (13 + 4i) has been added to n but the sum of both is zero.

That means n is also an imaginary number having opposite sign.

So, n = -(13 + 4i)

n = -13 - 4i

Therefor, Option D. will be the answer.

Answer 2

n=-13 - 4i

Explanation:

Hello!

Briefly, a complex number is one that is composed of a real component, and an imaginary component which is accompanied by the letter i which means the square root of -1.

To solve this problem we must subtract on both sides of the equation the imaginary part and the real part of this complex number in order to leave the number alone, as I show you below

13 + 4 i + n =0

we substract on both sides of ecuation to keep the equality ( -13-4i)

-13-4i+13+4i+n=-13 - 4i

(-13+13)+(4i-4i)+n=-13 - 4i

n=-13 - 4i