Vector space of 2 x 2 matrices with real entries, under the usual tion and scalar multiplication. Let N C M be the set of all invertible 2 x 2 matrices. Is N a vector subspace of Mor not? Justify. Let J : M → M be the function given by J(A) = A - AT. Check that J is a lincar transformation. Find a basis for the subspace S = ker(J). Extend your basis from (b) to a basis of M. In other words, find a basis of M that contains your basis of ker(J) as a subset. Define a function Tr: M→ R (the trace) by the sum of the diagonal entries. Check that Tr is a linear transformation. What is the dimension of ker(Tr)?
Vector space of 2 x 2 matrices with real entries, under the usual tion and scalar multiplication. Let N C M be the set of all invertible 2 x 2 matrices. Is N a vector subspace of Mor not? Justify. Let J : M → M be the function given by J(A) = A - AT. Check that J is a lincar transformation. Find a basis for the subspace S = ker(J). Extend your basis from (b) to a basis of M. In other words, find a basis of M that contains your basis of ker(J) as a subset. Define a function Tr: M→ R (the trace) by the sum of the diagonal entries. Check that Tr is a linear transformation. What is the dimension of ker(Tr)?
Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter5: Inner Product Spaces
Section5.CR: Review Exercises
Problem 41CR: Let B={(0,2,2),(1,0,2)} be a basis for a subspace of R3, and consider x=(1,4,2), a vector in the...
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