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Yuliya22 [10]
3 years ago
5

Which of the following is the conjugate of a complex number with 2 as the real part and −8 as the imaginary part?

Mathematics
2 answers:
vampirchik [111]3 years ago
3 0
The complex number is given as: 2-8i

So for conjugate, you just flip the sign of the imaginary part:

2+8i will be the answer
ser-zykov [4K]3 years ago
3 0
<h2>Answer:</h2>

The conjugate of the given complex number is:

                        2+8i

<h2>Step-by-step explanation:</h2>

We know that any complex number is written in the form of:

            z=a+ib

where a and b are real numbers.

The conjugate of the complex number is given by:

              \bar z=\bar {a+ib}\\\\i.e.\\\\\bar z=a-ib

Here we are given that:

We have a complex number such that the  real part of a complex number is 2 and it's imaginary part is -8.

i.e.

a=2 and b= -8

i.e. the complex number is:

z=2+(-8)i

Hence, the conjugate of this number is:

\bar z=2-(-8)i\\\\i.e.\\\\\bar z=2+8i

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