Question 1136872
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It was solved long time ago at this forum under this link


<A HREF=https://www.algebra.com/algebra/homework/Matrices-and-determiminant/Matrices-and-determiminant.faq.question.158796.html>https://www.algebra.com/algebra/homework/Matrices-and-determiminant/Matrices-and-determiminant.faq.question.158796.html</A>


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