Let's choose the following three numbers:
-
An integer: \( 5 \)
- In the form \( a + bi \), this can be written as \( 5 + 0i \).
- Here, the real part \( a = 5 \) and the imaginary part \( b = 0 \).
-
An imaginary number: \( 3i \)
- In the form \( a + bi \), this can be written as \( 0 + 3i \).
- Here, the real part \( a = 0 \) and the imaginary part \( b = 3 \).
-
A non-real complex number: \( 2 + 4i \)
- This is already in the form \( a + bi \).
- Here, the real part \( a = 2 \) and the imaginary part \( b = 4 \).
To summarize:
- Integer: \( 5 + 0i \) (real part = 5, imaginary part = 0)
- Imaginary number: \( 0 + 3i \) (real part = 0, imaginary part = 3)
- Non-real complex number: \( 2 + 4i \) (real part = 2, imaginary part = 4)