Magnitude of this complex number

Click For Summary
SUMMARY

The discussion centers on calculating the magnitude of a complex number, specifically |F|². The user initially attempted to find this by multiplying by the complex conjugate but encountered issues. The correct approach involves using Euler's formula and the relationship |F| = |A|/|B|, where F is defined as the ratio of two complex numbers A and B.

PREREQUISITES
  • Understanding of complex numbers and their properties
  • Familiarity with Euler's formula
  • Knowledge of complex conjugates
  • Basic algebraic manipulation of complex expressions
NEXT STEPS
  • Study Euler's formula in depth to understand its applications in complex number calculations
  • Practice finding magnitudes of complex numbers using the ratio of their components
  • Explore the concept of complex conjugates and their role in simplifying expressions
  • Learn about polar representation of complex numbers for enhanced understanding of magnitudes
USEFUL FOR

Students studying complex numbers, mathematics enthusiasts, and anyone needing to solve problems involving the magnitudes of complex expressions.

henryc09
Messages
68
Reaction score
0

Homework Statement



o07192.png

I have this equation and need to find |F|2 (which should be real). I thought you did this by multiplying by the complex conjugate which was just replacing all i with -i, but this doesn't seem to work. What am I doing wrong?

Thanks

Homework Equations





The Attempt at a Solution

 
Physics news on Phys.org
You might need to apply Euler's formula and then apply F= A/B => |F| = |A|/|B|.
 

Similar threads

  • · Replies 20 ·
Replies
20
Views
3K
  • · Replies 12 ·
Replies
12
Views
2K
  • · Replies 8 ·
Replies
8
Views
3K
  • · Replies 19 ·
Replies
19
Views
3K
  • · Replies 8 ·
Replies
8
Views
2K
Replies
31
Views
4K
  • · Replies 11 ·
Replies
11
Views
3K
  • · Replies 2 ·
Replies
2
Views
2K
Replies
3
Views
2K
  • · Replies 14 ·
Replies
14
Views
2K