Question Number 11034 by suci last updated on 08/Mar/17
![u= [(1,(−1),2) ] A= [(3,2),(1,3),(0,1) ] v= [(2,(−1)) ] uAv^t =....?](https://www.tinkutara.com/question/Q11034.png)
$${u}=\begin{bmatrix}{\mathrm{1}}&{−\mathrm{1}}&{\mathrm{2}}\end{bmatrix} \\ $$$${A}=\begin{bmatrix}{\mathrm{3}}&{\mathrm{2}}\\{\mathrm{1}}&{\mathrm{3}}\\{\mathrm{0}}&{\mathrm{1}}\end{bmatrix} \\ $$$${v}=\begin{bmatrix}{\mathrm{2}}&{−\mathrm{1}}\end{bmatrix} \\ $$$${uAv}^{{t}} =….? \\ $$
Commented by bahmanfeshki last updated on 09/Mar/17
![(uA)v^t =[2 1] [(2),((−1)) ]=3](https://www.tinkutara.com/question/Q11046.png)
$$\left({uA}\right){v}^{{t}} =\left[\mathrm{2}\:\:\mathrm{1}\right]\begin{bmatrix}{\mathrm{2}}\\{−\mathrm{1}}\end{bmatrix}=\mathrm{3} \\ $$