EBK MATHEMATICS FOR MACHINE TECHNOLOGY
8th Edition
ISBN: 9781337798396
Author: SMITH
Publisher: CENGAGE LEARNING - CONSIGNMENT
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Textbook Question
Chapter 38, Problem 2AR
Holes are to be drilled in the length of angle iron as shown in Figure 38-1. What is thedistance between two consecutive holes?
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Your work should be submitted on Moodle, before February 7 at 5 pm.
1. True or false:
(a) if E is a subspace of V, then dim(E) + dim(E) = dim(V)
(b) Let {i, n} be a basis of the vector space V, where v₁,..., Un are all eigen-
vectors for both the matrix A and the matrix B. Then, any eigenvector of A is
an eigenvector of B.
Justify.
2. Apply Gram-Schmidt orthogonalization to the system of vectors {(1,2,-2), (1, −1, 4), (2, 1, 1)}.
3. Suppose P is the orthogonal projection onto a subspace E, and Q is the orthogonal
projection onto the orthogonal complement E.
(a) The combinations of projections P+Q and PQ correspond to well-known oper-
ators. What are they? Justify your answer.
(b) Show…
1. True or false:
(a) if E is a subspace of V, then dim(E) + dim(E+) = dim(V)
(b) Let {i, n} be a basis of the vector space V, where vi,..., are all eigen-
vectors for both the matrix A and the matrix B. Then, any eigenvector of A is
an eigenvector of B.
Justify.
2. Apply Gram-Schmidt orthogonalization to the system of vectors {(1, 2, -2), (1, −1, 4), (2, 1, 1)}.
3. Suppose P is the orthogonal projection onto a subspace E, and Q is the orthogonal
projection onto the orthogonal complement E.
(a) The combinations of projections P+Q and PQ correspond to well-known oper-
ators. What are they? Justify your answer.
(b) Show that P - Q is its own inverse.
4. Show that the Frobenius product on n x n-matrices,
(A, B) =
= Tr(B*A),
is an inner product, where B* denotes the Hermitian adjoint of B.
5. Show that if A and B are two n x n-matrices for which {1,..., n} is a basis of eigen-
vectors (for both A and B), then AB = BA.
Remark: It is also true that if AB = BA, then there exists a common…
Chapter 38 Solutions
EBK MATHEMATICS FOR MACHINE TECHNOLOGY
Ch. 38 - Prob. 1ARCh. 38 - Holes are to be drilled in the length of angle...Ch. 38 - Prob. 3ARCh. 38 - Prob. 4ARCh. 38 - For each of the exercises in the following table,...Ch. 38 - Prob. 6ARCh. 38 - Prob. 7ARCh. 38 - Prob. 8ARCh. 38 - The following problems require computations with...Ch. 38 - Prob. 10AR
Ch. 38 - Read measurements a-h on the enlarged 32nds and...Ch. 38 - Prob. 12ARCh. 38 - Prob. 13ARCh. 38 - Read measurements i-p on the enlarged 50ths and...Ch. 38 - Prob. 15ARCh. 38 - Prob. 16ARCh. 38 - Read the vernier caliper and height gage...Ch. 38 - Prob. 18ARCh. 38 - Prob. 19ARCh. 38 - Prob. 20ARCh. 38 - Prob. 21AR
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