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Homework Statement
Homework Equations
can someone help me to solve this problem?
The Attempt at a Solution
I couldn't even approach
An orthonormal basis is a set of vectors that are mutually perpendicular (orthogonal) and have a length of 1 (unit vectors). In other words, they are a set of linearly independent vectors that span a space.
Finding an orthonormal basis for the intersection of subspaces allows us to simplify calculations and make them more efficient. It also helps us understand the structure of the intersection and its relationship to the original subspaces.
To find an orthonormal basis for the intersection of subspaces, we use the Gram-Schmidt process. This involves taking a basis for one subspace and orthogonalizing it with respect to the other subspace. The resulting vectors will form an orthonormal basis for the intersection.
Yes, the intersection of subspaces can have multiple orthonormal bases. This is because the Gram-Schmidt process can be applied in different ways, resulting in different sets of orthonormal vectors.
Yes, there are special cases where the intersection of subspaces may not have an orthonormal basis. This can happen if the subspaces are not orthogonal to each other or if one subspace is contained within the other. In these cases, the intersection may only have a spanning set, but not a basis.