15. are subspaces of F[a, b). a) All functions f in F[a, b] for which f(a) = 0 b) All functions f in F[a, b] for which f(a) = 1 c) All functions f in C[a, b] for which Sa f(x) dx = 0 d) All functions f in D[a, b] for which f'(x) = f(x) e) All functions f in D[a, b] for which f'(x) = e* 4. Determine which of the following sets of n × n ma- trices are subspaces of Mnxn (R). 16. Determi %3D 17. Determi a) The n x n diagonal matrices b) The n x n upper triangular matrices c) The n x n symmetric matrices d) The n x n matrices of determinant zero 18. Determ e) The n x n invertible matrices 5. If A is an m x n matrix and B is a nonzero element of R", do the solutions to the system AX = B form a subspace of R"? Why or why not? 6. Complex numbers a + bi where a and b are integers are called Gaussian integers. Do the Gaussian inte- gers form a subspace of the vector space of complex numbers? Why or why not? 19. Determ 20. Determ Use the sys Maple or an cises 21-2- 7. Do the sequences that converge to zero form a sub- space of the vector space of convergent sequences? How about the sequences that converge to a rational number? 8. Do the series that converge toa positive number form a subspace of the vector space of convergent series? How about the series that converge absolutely? 21. Determ 9. Is in Span 2 3 L.
15. are subspaces of F[a, b). a) All functions f in F[a, b] for which f(a) = 0 b) All functions f in F[a, b] for which f(a) = 1 c) All functions f in C[a, b] for which Sa f(x) dx = 0 d) All functions f in D[a, b] for which f'(x) = f(x) e) All functions f in D[a, b] for which f'(x) = e* 4. Determine which of the following sets of n × n ma- trices are subspaces of Mnxn (R). 16. Determi %3D 17. Determi a) The n x n diagonal matrices b) The n x n upper triangular matrices c) The n x n symmetric matrices d) The n x n matrices of determinant zero 18. Determ e) The n x n invertible matrices 5. If A is an m x n matrix and B is a nonzero element of R", do the solutions to the system AX = B form a subspace of R"? Why or why not? 6. Complex numbers a + bi where a and b are integers are called Gaussian integers. Do the Gaussian inte- gers form a subspace of the vector space of complex numbers? Why or why not? 19. Determ 20. Determ Use the sys Maple or an cises 21-2- 7. Do the sequences that converge to zero form a sub- space of the vector space of convergent sequences? How about the sequences that converge to a rational number? 8. Do the series that converge toa positive number form a subspace of the vector space of convergent series? How about the series that converge absolutely? 21. Determ 9. Is in Span 2 3 L.
Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter4: Vector Spaces
Section4.3: Subspaces Of Vector Spaces
Problem 14E: Subsets That Are Not Subspaces In Exercises 7-20 W is not a subspace of vector space. Verify this by...
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