What is the real part of the complex number z = 4 + 5i? (2022)

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Question: What is the real part of the complex number z = 4 + 5i? (2022)

Options:

Correct Answer: 4

Exam Year: 2022

Solution:

The real part of z = 4 + 5i is 4.

What is the real part of the complex number z = 4 + 5i? (2022)

What is the real part of the complex number z = 4 + 5i? (2022)

Step 1: Identify the complex number given, which is z = 4 + 5i.
Step 2: Understand that a complex number has two parts: a real part and an imaginary part.
Step 3: The real part is the number without the 'i'.
Step 4: In the complex number 4 + 5i, the real part is 4.
Step 5: Therefore, the real part of z is 4.

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