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Tag Archives: invertible matrices
Linear Algebra and Its Applications, Exercise 3.2.10
Exercise 3.2.10. Discuss whether the projection matrix from exercise 3.2.9 is invertible or not. Explain your answer. Answer:The projection matrix Note that each column of the resulting matrix is equal to the original vector multiplied by a scalar factor equal … Continue reading
Linear Algebra and Its Applications, Review Exercise 2.9
Review exercise 2.9. Answer the following questions for the vector space of 2 by 2 matrices: a) Does the set of 2 by 2 matrices with rank 1 form a subspace? b) What is the subspace spanned by the 2 … Continue reading
Posted in linear algebra
Tagged invertible matrices, permutation matrices, positive matrices, spanning set, subspace
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