Matrices - Find Minor Matrix from Number (3x3) (Level 1)

Math worksheet on 'Matrices - Find Minor Matrix from Number (3x3) (Level 1)'. Part of a broader unit on 'Matrices' Learn online: app.mobius.academy/math/units/matrices/

Find the resulting 2x2 'minor' matrix for the '6' at row 2 and column 3

$A LaTex expression showing M sub 23 \;of\;\left[ {\begin{array} {ccc} 8 & 1 & 7 \\ 5 & 5 & 6 \\ 3 & 1 & 8 \end{array} } \right]$

a $A LaTex expression showing \left[ {\begin{array} {cc} 8 & 7 \\ 5 & 6 \end{array} } \right]$

b $A LaTex expression showing \left[ {\begin{array} {cc} 5 & 6 \\ 3 & 8 \end{array} } \right]$

c $A LaTex expression showing \left[ {\begin{array} {cc} 5 & 6 \\ 1 & 8 \end{array} } \right]$

d $A LaTex expression showing \left[ {\begin{array} {cc} 8 & 1 \\ 3 & 1 \end{array} } \right]$

e $A LaTex expression showing \left[ {\begin{array} {cc} 1 & 7 \\ 1 & 8 \end{array} } \right]$

f $A LaTex expression showing \left[ {\begin{array} {cc} 8 & 1 \\ 5 & 5 \end{array} } \right]$

Find the resulting 2x2 'minor' matrix for the '2' at row 3 and column 3

$A LaTex expression showing M sub 33 \;of\;\left[ {\begin{array} {ccc} 7 & 8 & 7 \\ 8 & 5 & 7 \\ 3 & 4 & 2 \end{array} } \right]$

a $A LaTex expression showing \left[ {\begin{array} {cc} 8 & 7 \\ 5 & 7 \end{array} } \right]$

b $A LaTex expression showing \left[ {\begin{array} {cc} 7 & 8 \\ 8 & 5 \end{array} } \right]$

c $A LaTex expression showing \left[ {\begin{array} {cc} 8 & 7 \\ 3 & 2 \end{array} } \right]$

d $A LaTex expression showing \left[ {\begin{array} {cc} 8 & 7 \\ 4 & 2 \end{array} } \right]$

e $A LaTex expression showing \left[ {\begin{array} {cc} 7 & 7 \\ 3 & 2 \end{array} } \right]$

f $A LaTex expression showing \left[ {\begin{array} {cc} 5 & 7 \\ 4 & 2 \end{array} } \right]$

Find the resulting 2x2 'minor' matrix for the '9' at row 2 and column 3

$A LaTex expression showing M sub 23 \;of\;\left[ {\begin{array} {ccc} 4 & 0 & 2 \\ 7 & 0 & 9 \\ 5 & 4 & 10 \end{array} } \right]$

a $A LaTex expression showing \left[ {\begin{array} {cc} 0 & 9 \\ 4 & 10 \end{array} } \right]$

b $A LaTex expression showing \left[ {\begin{array} {cc} 0 & 2 \\ 4 & 10 \end{array} } \right]$

c $A LaTex expression showing \left[ {\begin{array} {cc} 7 & 0 \\ 5 & 4 \end{array} } \right]$

d $A LaTex expression showing \left[ {\begin{array} {cc} 4 & 2 \\ 7 & 9 \end{array} } \right]$

e $A LaTex expression showing \left[ {\begin{array} {cc} 4 & 0 \\ 5 & 4 \end{array} } \right]$

f $A LaTex expression showing \left[ {\begin{array} {cc} 4 & 0 \\ 7 & 0 \end{array} } \right]$

Find the resulting 2x2 'minor' matrix for the '6' at row 3 and column 3

$A LaTex expression showing M sub 33 \;of\;\left[ {\begin{array} {ccc} 3 & 0 & 7 \\ 1 & 2 & 2 \\ 2 & 7 & 6 \end{array} } \right]$

a $A LaTex expression showing \left[ {\begin{array} {cc} 3 & 0 \\ 2 & 7 \end{array} } \right]$

b $A LaTex expression showing \left[ {\begin{array} {cc} 3 & 7 \\ 2 & 6 \end{array} } \right]$

c $A LaTex expression showing \left[ {\begin{array} {cc} 3 & 7 \\ 1 & 2 \end{array} } \right]$

d $A LaTex expression showing \left[ {\begin{array} {cc} 3 & 0 \\ 1 & 2 \end{array} } \right]$

e $A LaTex expression showing \left[ {\begin{array} {cc} 1 & 2 \\ 2 & 6 \end{array} } \right]$

f $A LaTex expression showing \left[ {\begin{array} {cc} 0 & 7 \\ 2 & 2 \end{array} } \right]$

Find the resulting 2x2 'minor' matrix for the '9' at row 2 and column 2

$A LaTex expression showing M sub 22 \;of\;\left[ {\begin{array} {ccc} 10 & 5 & 2 \\ 2 & 9 & 5 \\ 6 & 3 & 7 \end{array} } \right]$

a $A LaTex expression showing \left[ {\begin{array} {cc} 9 & 5 \\ 3 & 7 \end{array} } \right]$

b $A LaTex expression showing \left[ {\begin{array} {cc} 2 & 5 \\ 6 & 7 \end{array} } \right]$

c $A LaTex expression showing \left[ {\begin{array} {cc} 10 & 5 \\ 2 & 9 \end{array} } \right]$

d $A LaTex expression showing \left[ {\begin{array} {cc} 5 & 2 \\ 9 & 5 \end{array} } \right]$

e $A LaTex expression showing \left[ {\begin{array} {cc} 10 & 2 \\ 6 & 7 \end{array} } \right]$

f $A LaTex expression showing \left[ {\begin{array} {cc} 10 & 2 \\ 2 & 5 \end{array} } \right]$

Find the resulting 2x2 'minor' matrix for the '8' at row 1 and column 1

$A LaTex expression showing M sub 11 \;of\;\left[ {\begin{array} {ccc} 8 & 2 & 0 \\ 4 & 2 & 9 \\ 7 & 9 & 1 \end{array} } \right]$

a $A LaTex expression showing \left[ {\begin{array} {cc} 2 & 0 \\ 9 & 1 \end{array} } \right]$

b $A LaTex expression showing \left[ {\begin{array} {cc} 2 & 9 \\ 9 & 1 \end{array} } \right]$

c $A LaTex expression showing \left[ {\begin{array} {cc} 8 & 0 \\ 4 & 9 \end{array} } \right]$

d $A LaTex expression showing \left[ {\begin{array} {cc} 4 & 2 \\ 7 & 9 \end{array} } \right]$

e $A LaTex expression showing \left[ {\begin{array} {cc} 4 & 9 \\ 7 & 1 \end{array} } \right]$

f $A LaTex expression showing \left[ {\begin{array} {cc} 8 & 2 \\ 4 & 2 \end{array} } \right]$

Find the resulting 2x2 'minor' matrix for the '4' at row 1 and column 3

$A LaTex expression showing M sub 13 \;of\;\left[ {\begin{array} {ccc} 6 & 9 & 4 \\ 1 & 3 & 6 \\ 7 & 0 & 1 \end{array} } \right]$

a $A LaTex expression showing \left[ {\begin{array} {cc} 6 & 9 \\ 7 & 0 \end{array} } \right]$

b $A LaTex expression showing \left[ {\begin{array} {cc} 3 & 6 \\ 0 & 1 \end{array} } \right]$

c $A LaTex expression showing \left[ {\begin{array} {cc} 1 & 3 \\ 7 & 0 \end{array} } \right]$

d $A LaTex expression showing \left[ {\begin{array} {cc} 9 & 4 \\ 0 & 1 \end{array} } \right]$

e $A LaTex expression showing \left[ {\begin{array} {cc} 6 & 4 \\ 1 & 6 \end{array} } \right]$

f $A LaTex expression showing \left[ {\begin{array} {cc} 1 & 6 \\ 7 & 1 \end{array} } \right]$

Practice:

Find Minor Matrix from Number (3x3)

Matrices - Find Minor Matrix from Number (3x3) Worksheet