# Chapter 2: Trigonometry TE - Common Errors

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**At Grade**Created by: CK-12### Image Attributions

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This chapter covers common errors supporting CK-12 Trigonometry Student Edition.

Difficulty Level:

At Grade
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angle of depression
angle of elevation
angular velocity
(43 more)
circular functions
CK.MAT.ENG.TE.1.Trigonometry.2
co-terminal angles
complex numbers
component vectors
cosecant function
cosine function
cotangent function
De Moivre's Theorem
domain
double-angle identities
frequency
half-angle identities
Heron's formula
imaginary numbers
initial side
inverse circular functions
inverse trigonometric functions
law of cosines
law of sines
nth root Theorem
period
phase shift
polar coordinates
polar equations
Polar-Cartesian coordinates
Pythagorean theorem
quadratic formula
radian measure
range
scalar
secant function
similar triangles
sine function
sum and difference identities for cosine
sum and difference identities for sine
sum and difference identities for tangent
systems of polar equations
tangent function
terminal side
trigonometric functions
trigonometric identities
vectors

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Date Created:

Feb 23, 2012
Last Modified:

Aug 19, 2014
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