Question

Determine if the statements are true or false. All vectors and subspaces are in R^n. 1. The Gram-Schmidt process produces from a linearly independent set {x1, ..., xp} an orthonormal set {v1, ..., vp} with the property that for each k, the vectors v1, ..., vk span the same subspace as that spanned by x1, ..., xk. 2. If A = QR, where Q has orthonormal columns, then R = Q^T A. 3. The orthogonal projection of y onto v is the same as the orthogonal projection of y onto cv whenever c ? 0. 4. If x and y are non zero vectors in R^n, then the orthogonal projection of x onto y is equal to the orthogonal projection of y onto x. Note: You can earn partial credit on this problem.

          Determine if the statements are true or false. All vectors and subspaces are in R^n.

1. The Gram-Schmidt process produces from a linearly independent set {x1, ..., xp} an orthonormal set {v1, ..., vp} with the property that for each k, the vectors v1, ..., vk span the same subspace as that spanned by x1, ..., xk.

2. If A = QR, where Q has orthonormal columns, then R = Q^T A.

3. The orthogonal projection of y onto v is the same as the orthogonal projection of y onto cv whenever c ? 0.

4. If x and y are non zero vectors in R^n, then the orthogonal projection of x onto y is equal to the orthogonal projection of y onto x.

Note: You can earn partial credit on this problem.

Determine if the statements are true or false. All vectors and subspaces are in R^n.

1. The Gram-Schmidt process produces from a linearly independent set x1, ..., xp an orthonormal set v1, ..., vp with the property that for each k, the vectors v1, ..., vk span the same subspace as that spanned by x1, ..., xk.

2. If A = QR, where Q has orthonormal columns, then R = Q^T A.

3. The orthogonal projection of y onto v is the same as the orthogonal projection of y onto cv whenever c ? 0.

4. If x and y are non zero vectors in R^n, then the orthogonal projection of x onto y is equal to the orthogonal projection of y onto x.

Note: You can earn partial credit on this problem.

Added by Inmaculada M.

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