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10 resources with the keyterm complex number

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Other Resource Types (10)
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Instructional Video11:53
Lesson Planet: Curated OER

Exponential Form to Find Complex Roots

For Students 10th - 12th
Sal solves the problem x^3 = 1 for all of the real and complex roots using the exponential form of the complex number. He shows how the roots found in exponential form are the same as those in a more traditional form of a complex number...
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Instructional Video12:58
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Complex Determinant Example

For Students 10th - 12th
Sal solves a complex determinant problem from the 2010 IIT entrance test. Knowledge of determinants, the exponential form of complex numbers, trigonometric ratios, and algebraic thinking are all utilized here.
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Instructional Video8:04
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Complex Conjugates

For Students 10th - 12th
Sal discusses the usefulness of the conjugate of the complex number is this video. First, he shows both graphically and algebraically adding a complex number and its conjugate. Then, he shows how to simplify a rational expression with...
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Instructional Video13:04
Lesson Planet: Curated OER

Basic Complex Analysis

For Students 10th - 12th
This video gives an excellent overview of the different representations of a complex number. First, Sal reviews a pictorial representation of a complex number as an Argand diagram, then shows how to find the modulus and the argument of a...
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Interactive
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Complex Number Multiplication

For Students 10th - 12th
In this multiplication worksheet, students multiply complex numbers.  This interactive one-page worksheet contains 10 problems.  Answers are provided.
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Interactive
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Complex Number Subtraction

For Students 10th - 12th
In this subtraction instructional activity, students find the difference of complex numbers.  This one-page instructional activity contains 10 problems.  Answers are provided.
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Lesson Plan
Lesson Planet: Curated OER

Radicals: Addition & Subtraction of Complex Numbers

For Teachers 10th - 12th Standards
In this radical worksheet, students simplify complex numbers.  They find the sum and difference of complex numbers.  This two-page worksheet contains 11 multiple-choice problems.  Answers are given on the last page.
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Worksheet
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Imaginary Unit & Standard Complex Form

For Students 11th - 12th
In this imaginary unit learning exercise, students solve quadratic equations. They write fractional expressions in standard form and identify the values of a complex number. Six of the ten problems on this one-page learning exercise...
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Worksheet
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Chapter 10 - Objective 3.1 Quadratic Formula

For Students 11th - 12th
In this quadratic formula worksheet, students solve quadratic equations. They use the discriminant to determine the solution or solutions to the problem. This one-page worksheet contains
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Lesson Plan
Lesson Planet: Curated OER

Complex Numbers

For Teachers 10th - 12th
In this complex numbers worksheet, students write numbers as a multiple of i. They add and subtract imaginary numbers. Students write complex quotients in standard form. This three-page worksheet contains six problems.