How many vectors are in {v1,v2,v3}

  • Thread starter Thread starter lvlastermind
  • Start date Start date
  • Tags Tags
    Vectors
Click For Summary
The discussion centers on determining the number of vectors in the set {v1, v2, v3}, which contains three vectors: v1 = (4,5,1), v2 = (12,14,3), and v3 = (31,38,8). Participants express confusion about whether the question pertains to the count of vectors or their linear independence. Clarification is sought regarding the definition of linear independence. Ultimately, it is confirmed that there are three vectors in the set, suggesting that the initial question may have been misinterpreted. The conversation highlights the importance of precise questioning in mathematical discussions.
lvlastermind
Messages
101
Reaction score
0

Homework Statement



v1 = (4,5,1)
v2 = (12,14,3)
v3 = (31,38,8)

How many vectors are in {v1,v2,v3}?

Homework Equations


Not sure


The Attempt at a Solution



I'm not sure what the question is asking so I don't know where to begin.
 
Physics news on Phys.org
do you mean how many linearly independent vectors? that would make more sense...

what is the defintion of linear independence...
 
lvlastermind said:

Homework Statement



v1 = (4,5,1)
v2 = (12,14,3)
v3 = (31,38,8)

How many vectors are in {v1,v2,v3}?

Homework Equations


Not sure


The Attempt at a Solution



I'm not sure what the question is asking so I don't know where to begin.

Your set has three vectors in it. That was so simple that I suspect what you asked wasn't really the question.
 
Question: A clock's minute hand has length 4 and its hour hand has length 3. What is the distance between the tips at the moment when it is increasing most rapidly?(Putnam Exam Question) Answer: Making assumption that both the hands moves at constant angular velocities, the answer is ## \sqrt{7} .## But don't you think this assumption is somewhat doubtful and wrong?

Similar threads

Replies
6
Views
1K
Replies
4
Views
2K
Replies
1
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 6 ·
Replies
6
Views
2K
  • · Replies 1 ·
Replies
1
Views
1K
  • · Replies 8 ·
Replies
8
Views
2K
  • · Replies 3 ·
Replies
3
Views
11K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 4 ·
Replies
4
Views
1K