Question: If z = -3 + 4i, what is the real part of z?
Options:
-3
4
0
3
Correct Answer: -3
Solution:
The real part of a complex number z = a + bi is a. Here, the real part is -3.
If z = -3 + 4i, what is the real part of z?
Practice Questions
Q1
If z = -3 + 4i, what is the real part of z?
-3
4
0
3
Questions & Step-by-Step Solutions
If z = -3 + 4i, what is the real part of z?
Step 1: Identify the complex number given in the question, which is z = -3 + 4i.
Step 2: Understand that a complex number is made up of a real part and an imaginary part. The format is a + bi, where 'a' is the real part and 'bi' is the imaginary part.
Step 3: In the complex number z = -3 + 4i, the real part is the number before the '+' sign, which is -3.
Step 4: Therefore, the real part of z is -3.
Complex Numbers – Understanding the structure of complex numbers, where z = a + bi, with 'a' as the real part and 'b' as the imaginary part.
Soulshift Feedback×
On a scale of 0–10, how likely are you to recommend
The Soulshift Academy?
