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By using elementry operations row transformation find the inverse of matrix A=2/1 -6/-2

Posted by Anushka Choudhary 3 years, 5 months ago

CBSE > Class 12 > Mathematics

2 answers

Jagdish Patil ??? 3 years, 5 months ago

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Tec Om 3 years, 5 months ago

<pre>A=[2 -6] [1 -2] minor of A=[-2 1] [-6 2] |A|=2 x(-2) - 1 x (-6) =2 cofactor of A=[-2 -1] [6 2] adjoint of A=[-2 6] [-1 2] inverse of A= adj of a/|A| </pre>
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