Purple Math
Purplemath: Conventions
A "convention" is "just the way a thing is done!". This reference material lists some common conventions (notational assumptions) for geometry and trigonometry.
Alabama Learning Exchange
Alex: How High Did My Rocket Go?
This is a lab in which the students will calculate the height of an air or water rocket by using trigonometry.
Math2
Math2.org: Trigonometry Tables
Three trig tables are provided for student and teacher reference. The first table lists the sine, cosine, tangent, secant, cosecant, and cotangent values of all whole-number angles from 0 to 90. The radian equivalent (to four decimals)...
Johan Claeys
Math Abundance: Trigonometry: The Sine Function
Definition of a sine function. Range and period also are given. Graph of sine function given as well.
ClassFlow
Class Flow: Advanced Trigonometry
[Free Registration/Login Required] Students describe, analyze, and reason angles being as small or as large as they can imagine. Using trigonometrical ratios, this is a fun exercise in understanding how to examine the perfect graph.
Free Math Help
Free Math Help: Trigonometry Addition Formulas
Students learn about the trigonometric addition formulas. Sine, cosine, and tangent formulas are included.
Math Open Reference
Math Open Reference: Cosecant (Csc) Trigonometry Function
Learn about the trigonometric function, cosecant, with this helpful reference tool. Provides a detailed definition and examples that enhances further explanation.
CK-12 Foundation
Ck 12: Trigonometry: Pythagorean Theorem for Solving Right Triangles
[Free Registration/Login may be required to access all resource tools.] Finding unknown sides in a triangle using other sides and angles.
CK-12 Foundation
Ck 12: Trigonometry: Pythagorean Theorem for Solving Right Triangles
[Free Registration/Login may be required to access all resource tools.] This lesson applies the trigonometric ratios and their inverses to real-life situations.
CK-12 Foundation
Ck 12: Trigonometry: Angle Angle Side Triangles
[Free Registration/Login may be required to access all resource tools.] Find the unknown side of a triangle when two angles and a side are known.
CK-12 Foundation
Ck 12: Trigonometry: Angles of Rotation in Standard Positions
[Free Registration/Login may be required to access all resource tools.] Learn how to express angles of rotation.
CK-12 Foundation
Ck 12: Trigonometry: Coterminal Angles
[Free Registration/Login may be required to access all resource tools.] Defining and identifying coterminal angles.
CK-12 Foundation
Ck 12: Trigonometry: Definition of Inverse Reciprocal Trig Functions
[Free Registration/Login may be required to access all resource tools.] Define reciprocal function.
CK-12 Foundation
Ck 12: Trigonometry: De Moivre's Theorem
[Free Registration/Login may be required to access all resource tools.] Simplify complex numbers raised to a power with DeMoivre's Theorem.
CK-12 Foundation
Ck 12: Trigonometry: Distance Between Two Polar Coordinates
[Free Registration/Login may be required to access all resource tools.] Find the distance between two points expressed in polar coordinates.
CK-12 Foundation
Ck 12: Trigonometry: Double Angle Identities
[Free Registration/Login may be required to access all resource tools.] Derivation of double angle identities for sine, cosine, and tangent.
CK-12 Foundation
Ck 12: Trigonometry:complex Roots
[Free Registration/Login may be required to access all resource tools.] Plot the roots of equations in polar coordinates.
CK-12 Foundation
Ck 12: Trigonometry: Heron's Formula
[Free Registration/Login may be required to access all resource tools.] Find the area of a triangle when all three sides are known.
CK-12 Foundation
Ck 12: Trigonometry: Identify Accurate Drawings of Triangles
[Free Registration/Login may be required to access all resource tools.] Determine if diagrams of triangles are accurately drawn.
CK-12 Foundation
Ck 12: Trigonometry: Law of Sines
[Free Registration/Login may be required to access all resource tools.] This lesson introduces the Law of Sines for two cases.
CK-12 Foundation
Ck 12: Trigonometry: Length of a Chord
[Free Registration/Login may be required to access all resource tools.] Find the length of a chord of a circle.
CK-12 Foundation
Ck 12: Trigonometry: Length of an Arc
[Free Registration/Login may be required to access all resource tools.] Definition and measurement of an arc on a circle,
CK-12 Foundation
Ck 12: Trigonometry: Proofs of Trigonometric Identities
[Free Registration/Login may be required to access all resource tools.] Simplifying trigonometric expressions using identities
CK-12 Foundation
Ck 12: Trigonometry: Proofs of Trigonometric Identities
[Free Registration/Login may be required to access all resource tools.] This lesson uses trigonometric identities to prove other identities.
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