Vector Subspace: Show S is a Subspace, Determine Basis & Find Dimension

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SUMMARY

The discussion focuses on proving that the set S, defined as all vectors parallel to the hyperplane 4x + 2y + z + 3r = 0 in R^4, is indeed a subspace. It emphasizes that vectors in S are perpendicular to the normal vector of the hyperplane, which can be derived from the coefficients of the hyperplane equation. The basis for S can be determined by identifying vectors that span the subspace, and its dimension can be calculated based on the number of free variables in the system of equations derived from the hyperplane equation.

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  • Understanding of vector spaces and subspaces
  • Knowledge of hyperplanes in R^n
  • Familiarity with normal vectors and their properties
  • Ability to perform linear algebra operations, including basis determination
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  • Explore methods for determining bases of vector subspaces
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Students and educators in linear algebra, mathematicians interested in vector spaces, and anyone seeking to understand the properties of hyperplanes and subspaces in R^4.

quanta13
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Homework Statement


Can you help please? I have this problem:
Let S be the set of all vectors parallel to the hyper-plane 4x +2y+z + 3r =0 in R^4 .
(a) Show that S is a subspace, (b) Determine a basis for S , (c) Find its dimension

Homework Equations

The Attempt at a Solution


S= { u=(x, y,z,r) | 4x+2y+z+3r=0} u is in R^4.
 
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quanta13 said:

Homework Statement


Can you help please? I have this problem:
Let S be the set of all vectors parallel to the hyper-plane 4x +2y+z + 3r =0 in R^4 .
(a) Show that S is a subspace, (b) Determine a basis for S , (c) Find its dimension

Homework Equations

The Attempt at a Solution


S= { u=(x, y,z,r) | 4x+2y+z+3r=0} u is in R^4.
That won't work. If the vectors in S are parallel to the hyperplane, then all of these vectors are perpendicular to a normal to the hyperplane. If you're given the equation of a hyperplane, do you know how to find a normal to this hyperplane?
 
If u is a vector and S is a hyperplane, what does it mean to say that u is parallel to S? You will need a definition of "parallel" to answer that.
 

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