Practice problem
Given the matrix [31161261580457]\begin{bmatrix}3&1&1&6\\12&6&15&8\\0&4&5&7\end{bmatrix}31201641155687 apply the row operation: 13 R2⟶R2\frac13\ R_2\longrightarrow R_231 R2⟶R2
[311642583126158]\begin{bmatrix}3&1&1&6\\4&2&5&\frac83\\12&6&15&8\end{bmatrix}341212615156388
[3131612215804357]\begin{bmatrix}3&\frac13&1&6\\12&2&15&8\\0&\frac43&5&7\end{bmatrix}3120312341155687
[3116931250457]\begin{bmatrix}3&1&1&6\\9&3&12&5\\0&4&5&7\end{bmatrix}3901341125657
[3116425830457]\begin{bmatrix}3&1&1&6\\4&2&5&\frac83\\0&4&5&7\end{bmatrix}3401241556387
Type a concept, like “slope” or “photosynthesis”.
