Mathematics, 22.07.2019 08:40 holman9308
!1. select the best answer for the question. multiply matrix d = [5,-2,1 ] by matrix e= [12] a. [4 8] b. 2 c. [5 -2 1 ,10 4 2] d. [5 10, -2 -4, 1 2] 2. subtract [-6 -4,6 0, 6 4] - [-5 5, -4 -4,6 -4] 3. add [1 -4,3 5] + [-2 6,-2 4] 4. find the determinant of a= [ 4 -7, 3 -2] a. 13 b. −2 c. 2 d. 29 5. what is matrix a + matrix b? a=[3 0, 2 -1] b= [ 2 8, .6 3] 6. what is 4c? c= [12 03/2, 1 -6 7] 7. evaluate the determinant for the following matrix: [-5 1, 5 4] 8. complete the multiplication: 2ea e= [12] a= [3 0, 2 -1] 9. multiply [5 0 , 3 -5] x [2 -1, 2 -2]
Answers: 1
![\left[\begin{array}{ccc}5\\-2\\1\end{array}\right] \left[\begin{array}{ccc}12\end{array}\right] = \left[\begin{array}{ccc}(5)(12)+(-2)(12)+(1)(1)\end{array}\right]](/tpl/images/0118/9794/74ce8.png)
![\left[\begin{array}{ccc}60-24+12\end{array}\right] = \left[\begin{array}{ccc}48\end{array}\right]](/tpl/images/0118/9794/472e6.png)
![\left[\begin{array}{ccc}-6&-4\\6&0\\6&4\end{array}\right] - \left[\begin{array}{ccc}-5&5\\-4&-4\\6&-4\end{array}\right]](/tpl/images/0118/9794/13a0d.png)
![\left[\begin{array}{ccc}(-6--5)&(-4-5)\\(6--4)&(0--4)\\(6-6)&(4--4)\end{array}\right] = \left[\begin{array}{ccc}-1&-9\\10&4\\0&8\end{array}\right]](/tpl/images/0118/9794/1882b.png)
![\left[\begin{array}{ccc}1&-4\\3&5\end{array}\right] + \left[\begin{array}{ccc}-2&6\\-2&4\end{array}\right]](/tpl/images/0118/9794/a4759.png)
![\left[\begin{array}{ccc}(1+-2)&(-4+6)\\(3+-2)&(5+4)\end{array}\right]](/tpl/images/0118/9794/7d9c8.png)
![\left[\begin{array}{ccc}-1&2\\1&9\end{array}\right]](/tpl/images/0118/9794/0f9f2.png)
![A= \left[\begin{array}{ccc}4&-7\\3&-2\end{array}\right]](/tpl/images/0118/9794/930d6.png)
![\left[\begin{array}{ccc}3&0\\2&-1\end{array}\right] + \left[\begin{array}{ccc}2&8\\6&3\end{array}\right]](/tpl/images/0118/9794/925c3.png)
![\left[\begin{array}{ccc}3+2&0+8\\2+6&(-1)+3\end{array}\right]](/tpl/images/0118/9794/3660e.png)
![\left[\begin{array}{ccc}5&8\\8&2\end{array}\right]](/tpl/images/0118/9794/02e90.png)
![4 \left[\begin{array}{ccc}12&0& \frac{3}{2} \\1&-6&7\end{array}\right] = \left[\begin{array}{ccc}48&0&6\\4&-24&28\end{array}\right]](/tpl/images/0118/9794/57365.png)
![C = \left[\begin{array}{ccc}-5&1\\5&4\end{array}\right]](/tpl/images/0118/9794/00061.png)
![2 \left[\begin{array}{ccc}12\end{array}\right] \left[\begin{array}{ccc}3&0\\2&-1\end{array}\right]](/tpl/images/0118/9794/de6f1.png)
![\left[\begin{array}{ccc}24\end{array}\right] \left[\begin{array}{ccc}3&6\\2&-1\end{array}\right]](/tpl/images/0118/9794/8e10c.png)
![\left[\begin{array}{ccc}72&0\\48&-24\end{array}\right]](/tpl/images/0118/9794/a8fd3.png)
![\left[\begin{array}{ccc}5&0\\3&-5\end{array}\right] \left[\begin{array}{ccc}2&-1\\2&-2\end{array}\right]](/tpl/images/0118/9794/c8c4f.png)
![\left[\begin{array}{ccc}(5)(2)+(0)(2)&(5)(-1)+(0)(-2)\\(3)(2)+(-5)(2)&(3)(-1)+(-5)(-2)\end{array}\right]](/tpl/images/0118/9794/cb390.png)
![\left[\begin{array}{ccc}10+0&-5+0\\6-10&-3+10\end{array}\right] = \left[\begin{array}{ccc}10&-5\\-4&7\end{array}\right]](/tpl/images/0118/9794/6f435.png)
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!1. select the best answer for the question. multiply matrix d = [5,-2,1 ] by matrix e= [12] a. [4...
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