* (18) Determine if the following matrices are invertible. If they are, find the inverse. 15 of 1 (a) A = 0-3 1 2-1 (b)
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* (18) Determine if the following matrices are invertible. If they are, find the inverse. 15 of 1 (a) A = 0-3 1 2-1 (b)
* (18) Determine if the following matrices are invertible. If they are, find the inverse. 15 of 1 (a) A = 0-3 1 2-1 (b) A = -1 1 0 1 3 4 cos-sin * (19) Is the matrix A = invertible? If it is, compute A-! Compute sin e cos (A? - A ).
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