<PRE><B>Question 995995</B>
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To solve the problems &amp;nbsp;2)&amp;nbsp; and &amp;nbsp;3)&amp;nbsp; of your list, &amp;nbsp;read the lessons 


&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;- &lt;A HREF=http://www.algebra.com/algebra/homework/Matrices-and-determiminant/Determinant-of-a-3x3-matrix.lesson&gt;Determinant of a 3x3 matrix&lt;/A&gt; 

&amp;nbsp;&amp;nbsp;&amp;nbsp;&amp;nbsp;- &lt;A HREF=http://www.algebra.com/algebra/homework/Matrices-and-determiminant/Co-factoring-a-3x3-determinant.lesson&gt;Co-factoring the determinant of a 3x3 matrix&lt;/A&gt; 


in this site. &amp;nbsp;Then make the calculations yourself.



We are here not for making calculations instead of you.


We are here to teach you.


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