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Ch 31: TASC Math: Trigonometry

About This Chapter

Get ready for the TASC test on mathematical reasoning by watching our informative videos on trigonometry. The lessons in this chapter review topics in sine and cosine, tangent functions, unit circles and trigonometric equations.

TASC Math: Trigonometry - Chapter Summary

Prepare for questions related to the lengths and angles of triangles on the TASC Math test with help from our online lessons and quizzes. The videos include topics related to:

  • Sine and cosine transformations
  • Tangent function
  • Unit circles
  • The first quadrant
  • Right triangles
  • Law of Sines and Law of Cosines
  • Double angle formula
  • Radians and degrees
  • Solving trigonometric equations
  • Trig identities

The lessons in this chapter review the properties of triangles and how you can use them to solve mathematical equations. They include short video lessons as well as practice quizzes that test your comprehension of key points. Each component is broken down into easy-to-understand video lessons to make sure you understand the fundamental elements of trigonometry.

TASC Math: Trigonometry - Chapter Objectives

The TASC is a high school equivalency test that is used by several states to test students' knowledge in math, science, reading, writing and social studies. The math portion of this test is divided into two subsections; a 50-minute section where you can use a calculator and 55 minutes for the non-calculator portion. The questions cover a wide range of math concepts in numbers and quantity, algebra, functions, geometry and statistics. Prepare for questions regarding the properties of triangles with this chapter's lessons on the Laws of Sines and Cosines, solving trigonometric equations and converting between degrees and radians. These questions fall into the test's geometry content domain, worth 23% of the total score.

11 Lessons in Chapter 31: TASC Math: Trigonometry
Test your knowledge with a 30-question chapter practice test
Graphing Sine and Cosine Transformations

1. Graphing Sine and Cosine Transformations

What happens when we take the sine and cosine wave and transform them? They get bigger, smaller, faster and slower. Find out how in this lesson on sine and cosine wave transformations.

Graphing the Tangent Function: Amplitude, Period, Phase Shift & Vertical Shift

2. Graphing the Tangent Function: Amplitude, Period, Phase Shift & Vertical Shift

Take a look at how the graph of a tangent function and how we can transform it by making a few small changes to its equation. This video shows how to graph the original function and explains its transformations.

Unit Circle: Memorizing the First Quadrant

3. Unit Circle: Memorizing the First Quadrant

Memorizing the unit circle can be a daunting task, but this lesson will show you a pattern to help you memorize the points, degree measures, and radian measures for the entire first quadrant.

Using Unit Circles to Relate Right Triangles to Sine & Cosine

4. Using Unit Circles to Relate Right Triangles to Sine & Cosine

The unit circle is a helpful tool for understanding trigonometric concepts. In this lesson, we'll look at right triangles on the unit circle to better grasp sine and cosine.

Special Right Triangles: Types and Properties

5. Special Right Triangles: Types and Properties

Not all right triangles are the same. In this lesson, we'll look at two special right triangles (30-60-90 and 45-45-90) that have unique properties to help you quickly and easily solve certain triangle problems.

Law of Sines: Definition and Application

6. Law of Sines: Definition and Application

Don't get stuck trying to find missing sides or angles in a triangle. Use the Law of Sines to rescue you from any perilous triangle in which you have just a few pieces of information.

Law of Cosines: Definition and Application

7. Law of Cosines: Definition and Application

In this lesson, we'll learn how to solve problems involving three sides and one angle in a triangle. The Law of Cosines, a modification of the Pythagorean Theorem, will save the day.

The Double Angle Formula

8. The Double Angle Formula

When you encounter a doubled angle, there are special formulas that can help you handle trigonometric value. In this lesson, we'll define and practice using the double angle formulas for sine, cosine and tangent.

Converting Between Radians and Degrees

9. Converting Between Radians and Degrees

Angles can be measured in degrees or radians. This lesson will explore the difference and provide you with a simple calculation that can be used to convert degrees into radians and radians into degrees.

How to Solve Trigonometric Equations for X

10. How to Solve Trigonometric Equations for X

Adding trigonometric functions into standard algebra equations adds complexity. Learn how to solve trigonometric equations for x and how to use inverse operations to simplify equations.

List of the Basic Trig Identities

11. List of the Basic Trig Identities

There are specific trig functions that have very special and very simple relationships with each other. Learn the main one and how you can use it to understand the others.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

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Other Chapters

Other chapters within the High School Trigonometry: Help and Review course

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