![A^{-1}={\left[\begin{array}{ccc}8&-5\\-3&2\\\end{array}\right]}](/tpl/images/0571/1145/0c4cd.png)
![\left[\begin{array}{ccc}2&5\\3&8\\\end{array}\right]](/tpl/images/0571/1145/46618.png)
, its inverse is calculated using the formula:![\left[\begin{array}{ccc}a&b\\c&d\\\end{array}\right] ^{-1}=\frac{1}{det\left[\begin{array}{ccc}a&b\\c&d\\\end{array}\right]}\left[\begin{array}{ccc}d&-b\\-c&a\\\end{array}\right]](/tpl/images/0571/1145/7ba71.png)
![\frac{1}{det\left[\begin{array}{ccc}2&5\\3&8\\\end{array}\right]}\left[\begin{array}{ccc}8&-5\\-3&2\\\end{array}\right]\\\\\\\\{det\left[\begin{array}{ccc}2&5\\3&8\\\end{array}\right]}=1\\\\\\\\\therefore =\frac{1}{1}{\left[\begin{array}{ccc}8&-5\\-3&2\\\end{array}\right]}\\\\\\\\={\left[\begin{array}{ccc}8&-5\\-3&2\\\end{array}\right]}](/tpl/images/0571/1145/f22b3.png)
Consider the matrix shown below:
...
Answers: 2
Another question on Mathematics
Mathematics, 21.06.2019 17:50
(01.02 lc) angle abc has point e on ray ba and point d on ray bc. points e and d are equidistant from point b. to bisect angle abc, which of the following needs to be identified for the construction? the distance between points e and d the point in the angle that is equidistant from points e and d the endpoint of rays ba and bc the point outside of the angle that is equidistant from points e and d
Answers: 1
Mathematics, 21.06.2019 21:30
The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?
Answers: 3
Mathematics, 21.06.2019 22:40
What rotation was applied to triangle def to create d’e’f’?
Answers: 2
You know the right answer?
Questions
Arts, 12.05.2020 20:57
Mathematics, 12.05.2020 20:57
Mathematics, 12.05.2020 20:57
Mathematics, 12.05.2020 20:57
Chemistry, 12.05.2020 20:57
