Mathematics, 01.06.2020 09:57 Vampfox
What is the determinant of the coefficient matrix of the system
Answers: 1
![\left[\begin{array}{ccc}4&3&2\\-3&1&5\\-1&-4&3\end{array}\right]](/tpl/images/0673/1101/d935a.png)
![\left[\begin{array}{ccc}a&b&c\\d&e&f\\h&i&j\end{array}\right]](/tpl/images/0673/1101/dda52.png)
![a*det(\left[\begin{array}{ccc}e&f\\i&j\\\end{array}\right]) -b*det(\left[\begin{array}{ccc}d&f\\h&j\\\end{array}\right]) +c*det(\left[\begin{array}{ccc}d&e\\h&i\\\end{array}\right] )](/tpl/images/0673/1101/93ca2.png)
![4*([1*3]-[-4*5])-3([-3*3]-[-1*5])+2([-3*(-4)]-[-1*1])\\\\4(3+20)-3(-9+5)+2(12+1)\\\\4(23)-3(-4)+2(13)\\\\92+12+26=130](/tpl/images/0673/1101/06081.png)
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