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Please Help

 Dec 3, 2020
 #1
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0.000112832461083 is the answer

 Dec 3, 2020
 #2
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is it correct?

 Dec 3, 2020
 #3
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or is it not correct?

 Dec 3, 2020
 #4
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could it be basic math

 Dec 3, 2020
 #5
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Can I ask you question? okay so the question is  this is a basic test question for you \(\mathbf{M} \begin{pmatrix} -3 & 4 & 0 \\ 5 & -7 & 0 \\ 0 & 0 & 1 \end{pmatrix} = \mathbf{I}.\)

 Dec 3, 2020
 #6
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I think it good 

                      -Thankssmiley

 Dec 3, 2020

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