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What is the real part of the complex number 7 - 4i? (2023)

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Question: What is the real part of the complex number 7 - 4i? (2023)

Options:

  1. 7
  2. -4
  3. 4
  4. 0

Correct Answer: 7

Exam Year: 2023

Solution: 

The real part of the complex number 7 - 4i is 7.

What is the real part of the complex number 7 - 4i? (2023)

Practice Questions

Q1
What is the real part of the complex number 7 - 4i? (2023)
  1. 7
  2. -4
  3. 4
  4. 0

Questions & Step-by-Step Solutions

What is the real part of the complex number 7 - 4i? (2023)
  • Step 1: Identify the complex number given in the question, which is 7 - 4i.
  • 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'. In this case, it is 7.
  • Step 4: The imaginary part is the number with 'i'. In this case, it is -4i.
  • Step 5: Conclude that the real part of the complex number 7 - 4i is 7.
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