Find bases for the following subspace of F^5

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SUMMARY

The discussion focuses on finding bases for the subspaces W1 and W2 of F^5. W1 is defined by the constraint a1 - a3 - a4 = 0, leading to a basis of vectors that can be expressed in terms of free variables. W2 is characterized by a2 = a3 = a4 and a1 + a5 = 0, resulting in a basis that includes the vectors (1, 0, 0, 0, -1) and (0, 1, 1, 1, 0). The constraints effectively guide the formation of linearly independent vectors that span each subspace.

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  • Understanding of linear algebra concepts, specifically vector spaces and bases.
  • Familiarity with the notation and properties of F^n spaces.
  • Knowledge of linear independence and spanning sets.
  • Ability to manipulate and solve linear equations.
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  • Study the properties of vector spaces in F^n, focusing on linear combinations.
  • Learn about the Rank-Nullity Theorem and its applications in finding bases.
  • Explore the concept of dimension in vector spaces and its implications for bases.
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Homework Statement



Find bases for the following subspaces of F^5:

W1 = {(a1, a2, a3, a4, a5) E F^5 : a1 - a3 - a4 = 0}

and

W2 = {(a1, a2, a3, a4, a5) E F^5: a2 = a3 = a4 and a1 + a5 = 0}

2. The attempt at a solution

Well, I understand a basis is the maximum amount of vectors in a set that are linearly independent, or the smallest amount of L.I vectors that span a space. What is throwing me off is the constraints a1 - a3 - a4 = 0 and a2 = a3 = a4 and a1 + a5 = 0
 
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Well, the constraints give you an idea of how a characteristic element of the subspace should look like. For example, in W2 you have an element (a1, a2, a2, a2, -a1) = a1(1, 0, 0, 0, -1) + a2(0, 1, 1, 1, 0). This should give you an idea.
 

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