Chapter A.7, Problem 4AYU

To determine

To find: The suitable parameters for the blanks.

Answer to Problem 4AYU

The suitable parameters for the blanks is

In a complex number $5+2i$ , the number $5$ is called the real part; the number $2$ is called imaginary Part; the number $i$ is called the imaginary unit.

Explanation of Solution

Given information:

The given statement is “In a complex number $5+2i$ , the number $5$ is called the $\mathrm{.......}$ part; the number $2$ is called……. Part; the number $i$ is called the …..

Calculation:

A complex number has a real part, an imaginary part and an imaginary unit.

$i$ is considered as imaginary unit.

The coefficient of $i$ is considered as imaginary part,

The other part is known as real part.

So as per the above concept $5$ is real part, $2$ is imaginary part and $i$ is imaginary unit.

Therefore, “In a complex number $5+2i$ , the number $5$ is called the real part; the number $2$ is called imaginary Part; the number $i$ is called the imaginary unit.