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Problem 29 Easy Difficulty

In Exercises 25-34, use the matrix capabilities of a graphing utility to find the inverse of the matrix (if it exists).

$\left[ \begin{array}{r} -\frac{1}{2} & \frac{3}{4} & \frac{1}{4} \\ 1 & 0 & -\frac{3}{2} \\ 0 & -1 & \frac{1}{2} \end{array} \right]$

Answer

$A^{-1}=\begin{array}{ccc}{-12} & {-5} & {-9} \\ {-4} & {-2} & {-4} \\ {-8} & {-4} & {-6}\end{array}$

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Video Transcript

I'm going to be using the free open source computer. Ouch! Persistent Morsi s called Maxima for solving these problems. Where there s us to do it with the computer. Um, 29. We have The matrix is minus. What have before? One for why? Zero minus. We have zero minus 1/2. Hey, that looks good and convert it and there is our inverse