Inverse from Determinant and Adjoint (3x3, without Formula) - Single Row or Column

Question

The determinant is 154 and the adjoint is shown. Which shows column 3 of the inverse? Fill only that column and leave the other entries blank.

$$\left[ {\begin{array} {ccc} -46 & -4 & \fcolorbox{#1b7f3b}{#e6f7ec}{$-56$} \ 11 & 11 & \fcolorbox{#1b7f3b}{#e6f7ec}{$0$} \ -41 & -27 & \fcolorbox{#1b7f3b}{#e6f7ec}{$-70$} \end{array}  } ight]$$

Accepted Answer

$$\left[ {\begin{array} {ccc} \square & \square & -0.36 \ \square & \square & 0 \ \square & \square & -0.45 \end{array}  } ight]$$

Answer

$$\left[ {\begin{array} {ccc} \square & \square & -0.36 \ \square & \square & 1.5 \ \square & \square & -0.45 \end{array}  } ight]$$

Answer

$$\left[ {\begin{array} {ccc} \square & \square & -1.11 \ \square & \square & 0 \ \square & \square & -1.2 \end{array}  } ight]$$

Answer

$$\left[ {\begin{array} {ccc} \square & \square & -1.11 \ \square & \square & 0.75 \ \square & \square & 0.8 \end{array}  } ight]$$

Practice: Matrices - Inverse from Determinant and Adjoint (3x3, without Formula) - Single Row or Column

On this page:

Practice:

Inverse from Determinant and Adjoint (3x3, without Formula) - Single Row or Column

Skills that use 'Matrices - Inverse from Determinant and Adjoint (3x3, without Formula) - Single Row or Column'