Find the inverse of the matrix. $$\left[ \begin{array} { l l l }
1 & 5 & 2 \
0 & 1 & 5 \
0 & 0 & 1
\end{array} \right]$$
A) $$\left[ \begin{array} { c c c }
1 & 5 & - 23 \
0 & 1 & 5 \
0 & 0 & 1
\end{array} \right]$$
B) $$\left[ \begin{array} { c c c }
- 1 & - 5 & 23 \
0 & - 1 & - 5 \
0 & 0 & - 1
\end{array} \right]$$
C) $$\left[ \begin{array} { c c c }
1 & - 5 & - 23 \
0 & 1 & - 5 \
0 & 0 & 1
\end{array} \right]$$
D) $$\left[ \begin{array} { l l l }
1 & 5 & 23 \
0 & 1 & 5 \
0 & 0 & 1
\end{array} \right]$$
E) $$\left[ \begin{array} { c c c }
1 & - 5 & 23 \
0 & 1 & - 5 \
0 & 0 & 1
\end{array} \right]$$

Question

Find the inverse of the matrix.​ $$\left[ \begin{array} { l l l } 
1 & 5 & 2 \
0 & 1 & 5 \
0 & 0 & 1
\end{array} \right]$$ ​
A)​ $$\left[ \begin{array} { c c c } 
1 & 5 & - 23 \
0 & 1 & 5 \
0 & 0 & 1
\end{array} \right]$$
B)​ $$\left[ \begin{array} { c c c } 
- 1 & - 5 & 23 \
0 & - 1 & - 5 \
0 & 0 & - 1
\end{array} \right]$$
C)​ $$\left[ \begin{array} { c c c } 
1 & - 5 & - 23 \
0 & 1 & - 5 \
0 & 0 & 1
\end{array} \right]$$
D)​ $$\left[ \begin{array} { l l l } 
1 & 5 & 23 \
0 & 1 & 5 \
0 & 0 & 1
\end{array} \right]$$
E)​ $$\left[ \begin{array} { c c c } 
1 & - 5 & 23 \
0 & 1 & - 5 \
0 & 0 & 1
\end{array} \right]$$

Quizplus · Accepted Answer

The Answer of Find the inverse of the matrix.​ $$\left[ \begin{array} { l l l } 
1 & 5 & 2 \
0 & 1 & 5 \
0 & 0 & 1
\end{array} \right]$$ ​
A)​ $$\left[ \begin{array} { c c c } 
1 & 5 & - 23 \
0 & 1 & 5 \
0 & 0 & 1
\end{array} \right]$$
B)​ $$\left[ \begin{array} { c c c } 
- 1 & - 5 & 23 \
0 & - 1 & - 5 \
0 & 0 & - 1
\end{array} \right]$$
C)​ $$\left[ \begin{array} { c c c } 
1 & - 5 & - 23 \
0 & 1 & - 5 \
0 & 0 & 1
\end{array} \right]$$
D)​ $$\left[ \begin{array} { l l l } 
1 & 5 & 23 \
0 & 1 & 5 \
0 & 0 & 1
\end{array} \right]$$
E)​ $$\left[ \begin{array} { c c c } 
1 & - 5 & 23 \
0 & 1 & - 5 \
0 & 0 & 1
\end{array} \right]$$

Find the Inverse of the Matrix [152015001]\left[ \begin{array} { l l l } 1 & 5 & 2 \\0 & 1 & 5 \\0 & 0 & 1\end{array} \right]​100​510​251​​

Find the Inverse of the Matrix $\left[ \begin{array} { l l l } 1 & 5 & 2 \\0 & 1 & 5 \\0 & 0 & 1\end{array} \right]$