Table of contents
- 0. Review of College Algebra4h 43m
- 1. Measuring Angles39m
- 2. Trigonometric Functions on Right Triangles2h 5m
- 3. Unit Circle1h 19m
- 4. Graphing Trigonometric Functions1h 19m
- 5. Inverse Trigonometric Functions and Basic Trigonometric Equations1h 41m
- 6. Trigonometric Identities and More Equations2h 34m
- 7. Non-Right Triangles1h 38m
- 8. Vectors2h 25m
- 9. Polar Equations2h 5m
- 10. Parametric Equations1h 6m
- 11. Graphing Complex Numbers1h 7m
5. Inverse Trigonometric Functions and Basic Trigonometric Equations
Inverse Sine, Cosine, & Tangent
Problem 6.55b
Textbook Question
Textbook QuestionSolve each equation for x.
4/3 arctan x/2 = π
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Inverse Trigonometric Functions
Inverse trigonometric functions, such as arctan, are used to find angles when given a ratio of sides in a right triangle. For example, if y = arctan(x), then tan(y) = x. Understanding how to manipulate these functions is crucial for solving equations involving them, as they allow us to isolate the variable representing the angle.
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Solving Trigonometric Equations
Solving trigonometric equations involves finding the values of the variable that satisfy the equation. This often requires using algebraic techniques to isolate the trigonometric function and then applying inverse functions to find the angle. In this case, we need to manipulate the equation to express x in terms of known values.
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Understanding π in Trigonometry
In trigonometry, π (pi) represents a fundamental constant, approximately equal to 3.14, and is crucial in defining the relationship between angles and their corresponding trigonometric values. When solving equations involving π, it is important to recognize its role in determining angle measures, particularly in radians, which is the standard unit for measuring angles in trigonometric functions.
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