Determinants 1
We shall start with finding the determinant of a 2 by 2 matrix. Find .
In the case that you do not know ' ', it actually is a very important function in matrices. It helps in finding the inverses of matrices and the increase of size after a transformation matrix has been applied on an area.
The answer is 3.
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1 solution
for 2x2 matrix let a=2, b=5, c=1, d=4 then det=ad-cb