Khan Academy
Khan Academy: Geometry: Basic Trigonometry
Problems address the equation of a circle, basic trignometry.
Khan Academy
Khan Academy: More Trig Examples: 2003 Aime Ii Problem 11
Video demonstrates solving a trigonometric problem that includes finding the area of an oblique triangle using the Pythagorean Theorem and the law of cosines.
Imagine Learning Classroom
Learn Zillion: Find Tangent Value Using Side Ratios
In this lesson, you will learn how the ratios of certain sides of the triangle determine the tangent value of a particular angle by using properties of similar triangles. [2:13]
Other
Mario's Math Tutoring: Act Math 21 Concepts to Boost Your Score
A video [48 mins, 48 sec] explaining 21 different math concepts to help students prepare for the ACT including; circumference; averages; probability; multiplication counting principle; functions; circles; percentages; factoring; rules of...
Khan Academy
Khan Academy: Trig Challenge Problem: Arithmetic Progression
Sal solves a very complicated algebraic trig problem that appeared as problem 29 in the 2010 IIT JEE Paper I exam.
Khan Academy
Khan Academy: Trig Challenge Problem: Maximum Value
Sal solves a very complicated algebraic trig problem that appeared as problem 48 in the 2010 IIT JEE Paper I exam.
Khan Academy
Khan Academy: Trig Challenge Problem: Multiple Constraints
In this video [12:48] Sal solves a very complicated algebraic trig problem that appeared as problem 47 in the 2010 IIT JEE Paper I exam.
Khan Academy
Khan Academy: Right Triangle Geometry Harder Example
The video from Khan Academy provides practice questions for the SAT. Students will watch Sal work through a harder right triangle trigonometry problem.
Khan Academy
Khan Academy: Right Triangle Geometry Basic Example
The video from Khan Academy provides practice questions for the SAT. Students will watch Sal work through a basic right triangle trigonometry problem.
Khan Academy
Khan Academy: Angles, Arc Lengths, and Trig Functions Harder Example
The video from Khan Academy provides practice questions for the SAT. Watch Sal work through a harder angles, arc lengths, and trig functions problem.
Khan Academy
Khan Academy: Angles, Arc Lengths, and Trig Functions Basic Example
The video from Khan Academy provides practice questions for the SAT. Students will watch Sal work through a basic angles, arc lengths, and trig functions problem.
Sophia Learning
Sophia: Cosecant and Sine: Lesson 3
Relationships between the graphs of cosecant and sine are explored in this lesson. It is 3 of 5 in the series titled "Cosecant and Sine." [2:57]
Sophia Learning
Sophia: Cosine: Lesson 3
The concept of the cosine of an angle is introduced here. This lesson [4:11] is 3 of 4 in the series titled "Cosine."
Sophia Learning
Sophia: Cosine Wave: Lesson 6
The shape and nature of the cosine wave are introduced here. This lesson [3:51] is 6 of 7 in the series titled "Cosine Wave."
Sophia Learning
Sophia: Cosine Wave: Lesson 7
The shape and nature of the cosine wave are introduced here. This lesson [4:32] is 7 of 7 in the series titled "Cosine Wave."
Sophia Learning
Sophia: Cotangent: Lesson 4
This lesson introduces the concept of the cotangent of an angle. It is 4 of 5 in the series titled "Cotangent." [2:21]
Sophia Learning
Sophia: Cotangent: Lesson 1
This lesson introduces the concept of the cotangent of an angle. It is 1 of 5 in the series titled "Cotangent." [3;11]
Sophia Learning
Sophia: Relationships of Trigonometric Functions: Lesson 1
Relationships among the six trigonometric functions are explored in this lesson. It is 1 of 4 in the series titled "Relationships of Trigonometric Functions."
Sophia Learning
Sophia: Trigonemetric Techniques: Lesson 4
This lesson explores some of the trigonometric properties and processes that can be used to solve trigonometric equations. It is 4 of 5 in the series titled "Trigonemetric Techniques."
Sophia Learning
Sophia: Trigonemetric Techniques: Lesson 5
This lesson explores some of the trigonometric properties and processes that can be used to solve trigonometric equations. It is 5 of 5 in the series titled "Trigonemetric Techniques."
Sophia Learning
Sophia: Trigonemetric Techniques: Lesson 1
This lesson explores some of the trigonometric properties and processes that can be used to solve trigonometric equations. It is 1 of 5 in the series titled "Trigonemetric Techniques."
Sophia Learning
Sophia: Trigonometic Notation: Lesson 4
Different ways of noting angles and trigonometric functions are discussed in this lesson. It is 4 of 5 in the series titled "Trigonometic Notation."
Sophia Learning
Sophia: Trigonometic Notation: Lesson 1
Different ways of noting angles and trigonometric functions are discussed in this lesson. It is 1 of 5 in the series titled "Trigonometic Notation."
Sophia Learning
Sophia: Trigonometric Functions in Context: Lesson 2
The practical uses of the trigonometric functions are explored here. This lesson is 2 of 6 in the series titled "Trigonometric Functions in Context."