SOLUTION: Find the inverse of the matrix [3 -1] it's a 2 by 2. [-10 9]

SOLUTION: Find the inverse of the matrix [3 -1] it's a 2 by 2. [-10 9]

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Question 991823: Find the inverse of the matrix [3 -1] it's a 2 by 2.
[-10 9]
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
The inverse of a 2x2 matrix,
is equal to the determinant,
multiplied by the matrix

Just substitute the values.

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