Well defined Vector operations

Click For Summary
SUMMARY

The discussion centers on the concept of "well-defined operations" in vector mathematics, specifically regarding the cross product (denoted as X) and dot product (denoted as .). The operations presented include combinations of scalar multipliers with vector operations. The consensus is that operations A, B, and D are well-defined, while C is not valid due to the improper use of the dot product with a scalar and a vector. The conclusion emphasizes the importance of understanding the rules governing vector operations.

PREREQUISITES
  • Understanding of vector operations, specifically cross product and dot product
  • Familiarity with scalar multiplication in vector mathematics
  • Knowledge of vector notation and properties
  • Basic principles of linear algebra
NEXT STEPS
  • Study the properties of vector operations in linear algebra
  • Learn about scalar multiplication and its effects on vectors
  • Explore the geometric interpretations of cross and dot products
  • Review examples of well-defined and undefined operations in vector calculus
USEFUL FOR

Students and educators in mathematics, particularly those studying linear algebra and vector calculus, as well as anyone seeking to deepen their understanding of vector operations and their definitions.

Whiz
Messages
20
Reaction score
0

Homework Statement



Given that u , v and w are vectors, which of the following are well defined operations? Find ALL correct answers

A. (3u X v) X (5u X w)
B. (3u X v) X (5u . w)
C. (3u X v) . (5u . w)
D. (3u X v) . (5u X w)
E. none of the above

X = Cross Product
. = Dot Product


I'm just wondering what this question means by "Well Defined Operations". If anyone knows, can you help me out?

Thanks.
 
Physics news on Phys.org
It is providing different cases and in some you are taking dot product of scalar and vector, cross product of scalar and vector etc. You need to tell them if it is valid.
 

Similar threads

  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
1
Views
1K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 10 ·
Replies
10
Views
3K
  • · Replies 58 ·
2
Replies
58
Views
5K
Replies
8
Views
2K
  • · Replies 1 ·
Replies
1
Views
8K