Practice problem
Given the matrix A=[8126310125116310]A=\left[\begin{array}{cc|c}8&1&2\\6&3&10\\12&5&11\\6&3&10\end{array}\right]A=8612613532101110, perform the row operation: R1⟷R2R_1\longleftrightarrow R_2R1⟷R2
[1823610512113610]\left[\begin{array}{cc|c}1&8&2\\3&6&10\\5&12&11\\3&6&10\end{array}\right]1353861262101110
[6310812125116310]\left[\begin{array}{cc|c}6&3&10\\8&1&2\\12&5&11\\6&3&10\end{array}\right]6812631531021110
[6328110125116310]\left[\begin{array}{cc|c}6&3&2\\8&1&10\\12&5&11\\6&3&10\end{array}\right]6812631532101110
Type a concept, like “slope” or “photosynthesis”.
