### We found 248 resources with the keyterm Trigonometry

Videos (Over 2 Million Educational Videos Available)

3:07

Who was Frederick Douglass?

3:11

Defining Gravity

4:18

Thomas Jefferson - Author of The...

Other Resource Types ( 248 )

Lesson Planet

#### Fun Trig Problem

If solving trigonometric equations is your idea of fun, then this video is correctly titled. Here Sal uses trigonometric identities, the quadratic formula, and inverse trigonometric functions to solve a trigonometric equation sent in by...

Lesson Planet

#### IIT JEE Trigonometry Maximum

Sal solves a question from a college entrance exam in India which asks one to find the maximum value of a rational expression with trigonometry ratios. To solve this problem, Sal finds a maximum value by finding the minimum value of the...

Lesson Planet

#### Inverse Trig Functions: Arccos

In the third video on inverse trigonometric functions, Sal follows a format similar to the last two. He finds the value for the arcos (-1/2) and shows the restricted domain of the arccos function. He also finds the value for cos(arccos...

Lesson Planet

#### Inverse Trig Functions: Arctan

Continuing with inverse trigonometric functions, Sal finds the value for tan^-1-1. He also shows the restricted domain of the arctan function.

Lesson Planet

#### Inverse Trig Functions: Arcsin

Sal defines the concept of inverse trigonometric functions and completes two examples of arcsin. Specifically, he finds the value of the arcsin (sqroot2/2) and arcsin (sqroot3/2). He also talks about the restricted domain of arcsin...

Lesson Planet

#### Fun Trig Problem

Lesson Planet

#### Intro to the Trigonometric Ratios

This video introduces the basics of trigonometry. It starts by defining a right triangle and showing two different examples of finding the ratios of sine, cosine, and tangent using the SOH-CAH-TOA mnemonic. This resource could be used as...

Lesson Planet

#### Ferris Wheel Trig Problem (part 2)

Sal continues the Ferris wheel problem in a previous video by graphing the function between zero and 30 seconds.

Lesson Planet

#### Ferris Wheel Trig Problem

The next time you are at an amusement park you may want to consider all the interesting math problems you could do! Using trigonometric ratios, some logic and algebra, Sal solves a problem in this video of finding a person's height off...

Lesson Planet

#### Proof: Law of Sines

In this video, Sal proves the Law of Sines by using the SOH-CAH-TOA model and setting up equivalent ratios.

Lesson Planet

#### Law of Cosines

Sal derives the Law of Cosines using a method similar to the wayward ship captain word problem he solves in another video. This video provides a good review of using the SOH-CAH-TOA model, the Pythagorean Theorem, some of the basic trig...

Lesson Planet

#### Trigonometry work problems (part 2)

In this part 2 video, Sal finishes the trigonometric word problem of the wayward ship captain. He wisely continues the algebra work on the problem before finally turning to his calculator for the very last calculation.

Lesson Planet

#### Circular Functions and Trigonometry

Students identify the different angles using the properties of trigonometry. In this trigonometry lesson, students find the coordinates of the terminal side of an angle in standard position.

Lesson Planet

#### Trigonometry

Students identify the different ratios of a right triangle. In this trigonometry lesson, students calculate the sine, cosine and tangent of a right triangle. They differentiate between right and oblique triangles.

Lesson Planet

#### Mathematics Lesson for Grade 10

There are four main topics in this bundle of lesson plans. They don't need to be taught sequentially. Each instructional activity has three parts: a starter, a main activity, and something to help consolidate and provide reflection on...

Lesson Planet

#### Law of Sines—Law of Sines and Law of Cosines

It's important to abide by the law. A thought-provoking lesson helps learners derive the Law of Sines. They then apply the Law of Sines to find unknown measures.

Lesson Planet

#### The unit circle definition of trigonometric function

In this video, Sal shows how the sine and cosine of an angle are defined on the unit circle. He inscribes a 30-60-90 triangle in the unit circle and explains how one can use SOH-CAH-TOA to find the coordinates on the circle.

Lesson Planet

#### Basic Trigonometry ll

Sal continues with examples of finding the sine, cosine, and tangent of an angle in a right triangle using SOH-CAH-TOA. In his examples, he reviews the use of the Pythagorean Theorem and rationalizing the denominator of a fraction. He...

Lesson Planet

#### Scoring Guide for the Algebra 2/Trigonometry Test Sampler

Students take an Algebra II/Trigonometry sample test. In this Algebra II/Trigonometry sample sample test instructional activity, students take a sample test for Algebra 2/Trigonometry. Students solve 39 multiple choice/short answer...

Lesson Planet

#### Trigonometric Identities

Investigate the properties of a Unit Circle, wahoo! Your class will memorize the basic identities of sine, cosine, and tangent. Then those smart cookies can investigate the negative of an angle measure using sine and cosine. Included are...

Lesson Planet

#### Periodic Functions, Domain and Range

Students identify the properties of a unit circle. In this trigonometry lesson, students analyze periodic functions using trigonometric ratios. They identify the domain and range of each function.

Lesson Planet

#### Triginometry: Find the Unknown Side

In this Trigonometry worksheet, students use the Pythagorean theorem to calculate the length of side x. There are 5 questions to solve and submit.

Lesson Planet

#### Easy Worksheet: Trigonometry

For this trigonometry worksheet, high schoolers solve 4 short answer problems. Students find the sine, cosecant, secant or cotangent of an angle given a diagram of a right triangle with various measurements labeled.

Lesson Planet

#### Applied Trigonometry Problems

In this applied trigonometry problems activity, students solve 12 short answer word problems. Students use trigonometric ratios to find angles of elevation and depression. Students find distances between objects using trigonometric...