Complex Numbers (Conjugates, Division, Modulus)
Related Topics:
Common Core (The Complex Number System)
Common Core for Mathematics
Examples, solutions, videos, and lessons to help High School students know how to find the conjugate of a complex number; use conjugates to find moduli and quotients of complex numbers.
Suggested Learning Targets
- I can use conjugates to divide complex numbers.
- I can find the moduli of complex numbers.
Common Core: HSN.CN.A.3
How to divide complex fractions?
- Write the problem in fractional form.
- Multiply the numerator and the denominator by the conjugate of the denominator.
The following diagram shows how to divide complex numbers. Scroll down the page for more examples and solutions for dividing complex numbers.
Divide Complex Numbers
Dividing by Complex Numbers
How to divide one complex number by another?
Complex Numbers
Dividing complex numbers. Complex conjugates.
Complex Numbers: Dividing - Ex 1
This shows how to divide a complex number by another complex number.
Complex Numbers: Dividing - Ex 2
This shows how to divide a complex number by another complex number.
Complex Numbers: Dividing - Ex 3
This shows how to divide a complex number by another complex number.
Modulus of a Complex Number
Absolute value of a complex number
Modulus of a complex number. Distance form the origin (0, 0).
Complex Numbers: Graphing and Finding the Modulus, Ex 1.
This video shows how to graph a complex number and how to find the modulus of a complex number.
Complex Numbers: Graphing and Finding the Modulus, Ex 2.
This video shows how to graph a complex number and how to find the modulus of a complex number.
Try out our new and fun Fraction Concoction Game.
Add and subtract fractions to make exciting fraction concoctions following a recipe. There are four levels of difficulty: Easy, medium, hard and insane. Practice the basics of fraction addition and subtraction or challenge yourself with the insane level.
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.