Tag Archives: invertible matrices

Linear Algebra and Its Applications, Exercise 3.2.10

Posted on May 24, 2014 by hecker

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 →

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Linear Algebra and Its Applications, Review Exercise 2.9

Posted on November 2, 2013 by hecker

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 →

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