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Complex Conjugates, Imaginary and Complex Numbers, Precalculus Instructional VideoComplex Conjugates, Imaginary and Complex Numbers, Precalculus Instructional Video
Publisher
Khan Academy
Resource Details
Curator Rating
Educator Rating
Not yet Rated
Grade
10th - 12th
Subjects
Math
1 more...
Resource Type
Instructional Videos
Media Length
8:04
Audiences
For Teacher Use
1 more...
Duration
10 mins
Instructional Strategies
Flipped Classroom
1 more...
Accessibility
Closed Captions
1 more...
Year
2010
Usage Permissions
Creative Commons
BY-NC-SA: 3.0
cc
Instructional Video

Complex Conjugates, Imaginary and Complex Numbers, Precalculus

Curated and Reviewed by Lesson Planet

Sal discusses the usefulness of the conjugate of the complex number in this video. First, he shows how to add a complex number and its conjugate graphically and algebraically. Then, he shows how to simplify a rational expression with complex numbers in the denominator.

6 Views 0 Downloads

Concepts

complex numbers

Additional Tags

complex number, conjugate on a complex number, simplify expressions containing complex numbers, math

Classroom Considerations

  • This video is hosted on YouTube

See similar resources:

Lesson Plan

Complex Number Division 2

EngageNY
Individuals learn to divide and conquer complex numbers with a little help from moduli and conjugates. In the second lesson on complex number division, the class takes a closer look at the numerator and denominator of the multiplicative...
11th - 12th Math
CCSS: Designed
Lesson Plan

Complex Number Division 1

EngageNY
Conjugating in the math classroom — and we're not talking verbs! The seventh lesson in a series of 32 introduces the class to the building blocks of complex number division. During the instruction, the class learns to find the...
11th - 12th Math
CCSS: Designed
Instructional Video

Exponential Form to Find Complex Roots

Khan Academy
Sal solves the problem x^3 = 1 for all real and complex roots using the exponential form of the complex number. He shows how the roots found in the exponential form are the same as those in a more traditional form of a complex number...
12 mins 10th - 12th Math
Instructional Video

IIT JEE Complex Numbers (Part 1), Imaginary and Complex Numbers, Precalculus

Khan Academy
In this video, a complex number is defined and graphed on the complex plane. Sal also shows how to add, subtract, and multiply two complex numbers. He shows how to divide two complex numbers but runs out of time and continues in the...
7 mins 9th - 11th Math
Instructional Video

Khan Academy: Intro to Complex Number Conjugates

Khan Academy
An instructional video describing complex conjugates. Complex conjugates are defined and then used to simplify a problem in which a complex number is divided by another complex number. [8:03]
9th - 10th Math
CCSS: Adaptable
Instructional Video

How Do You Subtract Two Rational Expressions with Different Denominators?

Curated OER
Reinforce instruction on the least common denominator and subtracting rational expressions with this tutorial video. Learners can view this video in class or at home. Consider using this resource to supplement your lesson plan.
5 mins 6th - 12th Math
Instructional Video

How Do You Subtract Two Rational Expressions with Different Denominators?

Curated OER
Reinforce instruction on the least common denominator and subtracting rational expressions with this tutorial video. Learners can view this video in class or at home. Consider using this resource to supplement your lesson plan.
4 mins 8th - 11th Math
Instructional Video

How Do You Add Two Rational Expressions with Different Denominators?

Curated OER
Teach your class how to add two algebraic fractions with different denominators. The instructor in the video describes how to find the common denominator and demonstrates how to simplify the expression. A straightforward video, this...
4 mins 6th - 12th Math
Instructional Video

How Do You Add Two Rational Expressions with Different Denominators?

Curated OER
Teach your class how to add two algebraic fractions with different denominators. The instructor in the video describes how to find the common denominator and demonstrates how to simplify the expression. A straightforward video, this...
4 mins 8th - 11th Math
Instructional Video

How Do You Subtract Two Rational Expressions with the Same Denominator?

Curated OER
Rational expressions that are in the form of fractions. Yuk! The teacher demonstrates how to subtract one rational expression from the other when the expressions have a common denominator. Combine like terms and write it in simplest form.
2 mins 6th - 12th Math
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