What is the real part of the complex number - 3+9i

The real part of given complex number - 3 + 9i is - 3

Solution:

We have to find the real part of complex number - 3 + 9i

A Complex Number is a combination of real Number and an imaginary Number

The general form of complex number is:

a + bi

Where "a" and "b" are real numbers and i is the unit imaginary number

The given complex number is:

-3 + 9i

On comparing the above complex number with general form of complex number we get,

Real part = - 3

Thus real part of given complex number is - 3