Mathematics: 1. find the inverse of the following matrices a 3 0 2 -1

1. find the inverse of the following matrices a 3

shawdyylinda

01.01.2022

Step-by-step explanation:

Given is a 2x2 square matrix A as

$\left[\begin{array}{ccc}3&0\\2&-1\\\end{array}\right]$

|A|=6

Cofactors are

$\left[\begin{array}{ccc}-1&-2\\0&3\end{array}\right]$

adj matrix = $\left[\begin{array}{ccc}-1&0\\-2&3\end{array}\right]$

Hence Inverse of A

= $\frac{1}{6} \left[\begin{array}{ccc}-1&0\\-2&3\end{array}\right]$

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michellelirett

22.11.2022

Three $5's and eleven $1's

Step-by-step explanation:

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