SOLUTION: Give an example of a 2 by 2 matrix and describe how to find the inverse of the matrix. When does a matrix not have an inverse?

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Question 1073299: Give an example of a 2 by 2 matrix and describe how to find the inverse of the matrix. When does a matrix not have an inverse?
Answer by ikleyn(52790) About Me  (Show Source):
You can put this solution on YOUR website!
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http://www.mathwords.com/i/inverse_of_a_matrix.htm

http://www.mathcentre.ac.uk/resources/uploaded/sigma-matrices7-2009-1.pdf