DesignatedT
New member
- Joined
- Jun 9, 2012
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- 10
find a, b, c, and d ... View attachment 2028
View attachment 2029
Anyone who can help would be greatly appreciated.
Thanks.
Find the inverse of the first matrix and multiply both sides by thatfind a, b, c, and d ... View attachment 2028
View attachment 2029
Anyone who can help would be greatly appreciated.
Thanks.
Hi HallsofIvy,Same calculations but in a shortcut form: write the two matrices as the four by eight matrix:
\(\displaystyle \begin{bmatrix}2 & -3 & -3 & 4 \\ 3 & -1 & 6 & 1\end{bmatrix}\)
and row reduce to make the first two number in the first row 1 0 and in the second a row 0 1. the last four columns will be the solution matrix.
More help that than you will not get until you have shown some work yourself.