Section 7.5 The Cross Product and Its Properties
Key Concepts:
Lessons for Section 7.5:
The Cross Product and Its Properties
1. Dot Product vs. Cross Product
1. Dot Product vs. Cross Product
2. The Cross Product
3. More on Cross Product
Note: The above videos use matrix notation, not coordinate notation, for finding the cross product of vectors.
4. Cross Product in Matrix Notation (Scroll down for explanation and example.)
Important: Order of Vectors is important for Cross Product. { e.g. u x v = -(v x u) NOT v x u }
4. Cross Product in Matrix Notation (Scroll down for explanation and example.)
Important: Order of Vectors is important for Cross Product. { e.g. u x v = -(v x u) NOT v x u }
5. Properties of Dot Product vs. Properties of Cross Product (Summary)
Assigned Practices:
- eBook: Read p. 403 to 410
- eBook: Do exercises on p. 410 #1 to 5, #7 to 10, #12
- eBook: In-Class exercises on p. 411 #13 to 15, #17