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In many books as well, i find. I need tricks or shortcuts to find the inverse of $2 \\times 2$ and $3 \\times 3$ matrices. Deriving inverse matrix formula ask question asked 11 years ago modified 8 years, 1 month ago
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The relationship between the two illustrates various properties of the matrix inverse. What have i done to the 3 equations is exactly my question. Please note that i understand very well how to find the inverse of a matrix, i just don't understand the intuition of.
Is there a way of finding the inverse of a 3 × 3 3 × 3 matrix without forming an augmented matrix with the identity matrix?
I want to know what is the main condition for the inverse of a matrix to exist ? Then finding the determinant is a very difficult for such a matrix. Also, is there a quick way of checking that a 3 × 3 3 × 3 matrix's.
