Which expression represents the inverse of the matrix below? beginbmatrix 1&3 -1&2endbmatrix 1/5 beginbmatrix -2&-3 1&-1endbmatrix 1/-1 beginbmatrix -2&-3 1&-1endbmatrix 1/-1 beginbmatrix 2&-3 1&1endbmatrix 1/5 [2-3] Mark this and return Save a

Question
Which expression represents the inverse of the matrix below? beginbmatrix 1&3 -1&2endbmatrix 1/5 beginbmatrix -2&-3 1&-1endbmatrix 1/-1 beginbmatrix -2&-3 1&-1endbmatrix 1/-1 beginbmatrix 2&-3 1&1endbmatrix 1/5 [2-3] Mark this and return Save a
Answer:
\begin{bmatrix}\frac{2}{5} & - \frac{3}{5}\\\frac{1}{5} & \frac{1}{5}\end{bmatrix}
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algebra 11 months ago 2277