Can a Set of 5 Vectors Span All of R6?

In summary, the conversation discusses whether a set of 5 vectors in R6 can span all of R6. The participants are unsure and mention the importance of understanding the basic definitions and concepts of vector spaces. It is stated that R6 has a dimension of 6 and any spanning set in a space of dimension n must have n vectors. Additionally, any linearly independent set in a space of dimension n must have n or fewer vectors. Therefore, it is concluded that 6 vectors must be able to span R6.
  • #1
ykaire
15
0
1. Can a set of 5 vectors in R6 span all of R6?I want to say that it does span, because i remember my teacher saying "don't think of the physical world," but I'm not entirely sure if it does.
 
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  • #2
Neither of those are very good reasons for answering one way or another. Why do you think 5 vectors can span R^6?
 
  • #3
Dick said:
Neither of those are very good reasons for answering one way or another. Why do you think 5 vectors can span R^6?


I'm not sure, to be honest.
 
  • #4
How many vectors span R2? R3?
 
  • #5
venom192 said:
How many vectors span R2? R3?
Um, I'm guessing that vectors span R2 and 3 Vectors span R3.
so... that must mean that 6 vectors span R6.
 
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  • #6
Why are you doing all of this guessing? It looks to me like you need to review the basic definitions. You should know immediately that R6 has dimension 6. What does that mean. What can you say about any spanning set in a space of dimension n? What can you say about any linearly independent set in a space of dimension n?
 

FAQ: Can a Set of 5 Vectors Span All of R6?

Can a set of 5 vectors span all of R6?

No, a set of 5 vectors cannot span all of R6. In order to span a vector space, the number of vectors in the set must be equal to or greater than the dimension of the vector space.

How many vectors are needed to span R6?

In order to span R6, at least 6 vectors are needed. This is because R6 is a 6-dimensional vector space.

Can a set of 5 linearly independent vectors span all of R6?

Yes, a set of 5 linearly independent vectors can span all of R6. Linear independence means that none of the vectors in the set can be written as a linear combination of the other vectors in the set.

What is the maximum number of vectors needed to span R6?

The maximum number of vectors needed to span R6 is 6. This is because R6 is a 6-dimensional vector space, so a set of 6 linearly independent vectors can span all of R6.

Can a set of 5 non-coplanar vectors span all of R6?

Yes, a set of 5 non-coplanar vectors can span all of R6. Coplanar vectors are those that lie in the same plane, so by having 5 non-coplanar vectors, we ensure that they span a 5-dimensional subspace of R6, which is all of R6.

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