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Determinants
CONCEPTS
Determinants
• The determinant of a 2 x 2 matrix is defined as D = ad – bc for the matrix
• Sometimes the determinant equation is given and sometimes it isn’t
PRACTICE PROBLEMS
Question 1 What is the determinant for the matrix
-- Answer -- 31
Det = (8) (-2) - (3) (-5) = -16 - (-15) = 31
ACT PRACTICE PROBLEMS
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