Textbook Question
In Exercises 1–4, u and v have the same direction. In each exercise: Find ||u||.
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Table of contents
- 0. Review of College Algebra
- 1. Measuring Angles
- 2. Trigonometric Functions on Right Triangles
- 3. Unit Circle
- 4. Graphing Trigonometric Functions
- 5. Inverse Trigonometric Functions and Basic Trigonometric Equations
- 6. Trigonometric Identities and More Equations
- 7. Non-Right Triangles
- 8. Vectors
- 9. Polar Equations
- 10. Parametric Equations
- 11. Graphing Complex Numbers
- OLD 1. Angles and the Trigonometric Functions
- OLD 2. Trigonometric Functions graphs, Inverse Trigonometric Functions
- OLD 3. Trigonometric Identities and Equations
- OLD 4. Laws of Sines, Cosines and Vectors
- OLD 5. Complex Numbers, Polar Coordinates and Parametric Equations
- NEW (not used) 7. Laws of Sines, Cosines and Vectors
- NEW (not used) 8. Vectors
- NEW(not used) 9. Polar equations
- NEW (not used) 11. Graphing Complex Numbers