Another geometric proof involving a little bit matrix algebra:
This starts with a simple case and extends it by using a ratation matrix.
Why determinant of a 2 by 2 matrix is the area of a parallelogram?
A very geometric proof:
Another geometric proof involving a little bit matrix algebra:
This starts with a simple case and extends it by using a ratation matrix.
Another geometric proof involving a little bit matrix algebra:
This starts with a simple case and extends it by using a ratation matrix.
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