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0. Review of College Algebra(0)

Rationalizing Denominators
(0)

Pythagorean Theorem & Basics of Triangles
(0)

Basics of Graphing
(0)

Functions
(0)

Transformations
(0)

Asymptotes
(0)

Solving Linear Equations
(0)

Solving Quadratic Equations
(0)

Complex Numbers
(0)

1. Measuring Angles(0)

Angles in Standard Position
(0)

Coterminal Angles
(0)

Complementary and Supplementary Angles
(0)

Radians
(0)

2. Trigonometric Functions on Right Triangles(0)

Trigonometric Functions on Right Triangles
(0)

Special Right Triangles
(0)

Cofunctions of Complementary Angles
(0)

Solving Right Triangles
(0)

3. Unit Circle(0)

Defining the Unit Circle
(0)

Trigonometric Functions on the Unit Circle
(0)

Common Values of Sine, Cosine, & Tangent
(0)

Reference Angles
(0)

Reciprocal Trigonometric Functions on the Unit Circle
(0)

4. Graphing Trigonometric Functions(0)

Graphs of the Sine and Cosine Functions
(0)

Phase Shifts
(0)

Graphs of Secant and Cosecant Functions
(0)

Graphs of Tangent and Cotangent Functions
(0)

5. Inverse Trigonometric Functions and Basic Trigonometric Equations(0)

Inverse Sine, Cosine, & Tangent
(0)

Evaluate Composite Trig Functions
(0)

Linear Trigonometric Equations
(0)

6. Trigonometric Identities and More Equations(0)

Introduction to Trigonometric Identities
(0)

Sum and Difference Identities
(0)

Double Angle Identities
(0)

Solving Trigonometric Equations Using Identities
(0)

7. Non-Right Triangles(0)

Law of Sines
(0)

Law of Cosines
(0)

Area of SAS & ASA Triangles
(0)

8. Vectors(0)

Geometric Vectors
(0)

Vectors in Component Form
(0)

Direction of a Vector
(0)

Unit Vectors and i & j Notation
(0)

Dot Product
(0)

Cross Product
(0)

9. Polar Equations(0)

Polar Coordinate System
(0)

Convert Points Between Polar and Rectangular Coordinates
(0)

Convert Equations Between Polar and Rectangular Forms
(0)

Graphing Other Common Polar Equations
(0)

10. Parametric Equations(0)

Graphing Parametric Equations
(0)

Eliminate the Parameter
(0)

Writing Parametric Equations
(0)

11. Graphing Complex Numbers(0)

Graphing Complex Numbers
(0)

Polar Form of Complex Numbers
(0)

Products and Quotients of Complex Numbers
(0)

Powers of Complex Numbers (DeMoivre's Theorem)
(0)

OLD 1. Angles and the Trigonometric Functions(0)

OLD 2. Trigonometric Functions graphs, Inverse Trigonometric Functions(0)

OLD 3. Trigonometric Identities and Equations (0)

OLD 4. Laws of Sines, Cosines and Vectors(0)

OLD 5. Complex Numbers, Polar Coordinates and Parametric Equations(0)

NEW (not used) 7. Laws of Sines, Cosines and Vectors(0)

NEW (not used) 8. Vectors(0)

NEW(not used) 9. Polar equations(0)

NEW (not used) 11. Graphing Complex Numbers(0)

11. Graphing Complex Numbers

Powers of Complex Numbers (DeMoivre's Theorem)

11. Graphing Complex Numbers

Powers of Complex Numbers (DeMoivre's Theorem): Videos & Practice Problems

Video Lessons Practice Worksheet

Back to all problems

Back to all problems

12 of 0

Problem 12Multiple Choice

Determine all the complex roots for the given complex number. Express the complex roots in the polar form using angles in degrees.
The complex square roots of 36(cos 60° + i sin 60°)

A

6(cos 60° + i sin 60°) and 6(cos 210° + i sin 210°)

B

6(cos 30° + i sin 30°) and 6(cos 420° + i sin 420°)

C

36(cos 30° + i sin 30°) and 6(cos 210° + i sin 210°)

D

6(cos 30° + i sin 30°) and 6(cos 210° + i sin 210°)

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