gsophie4837 gsophie4837

17-07-2017
Mathematics

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how do you find the inverse of a 2x2 matrix

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amirreza688 amirreza688

20-07-2017

first find the determinate
[tex] \frac{1}{determinate} \left[\begin{array}{ccc}d&-b\\-c&a\end{array}\right][/tex]
which is ad-bc
then use this to find the inverse

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