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You can create printable tests and worksheets from these Grade 11 Matrices questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

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What is the rule for matrix multiplication?
1. The number of columns of the first matrix must equal the number of rows of the second matrix.
2. The matrices must have the same dimensions.
3. The matrices must have the same number of rows, but not columns.
4. There is no rule. Matrix multiplication is always possible.
What is the rule for matrix addition and subtraction?
1. The number of columns of the first matrix must equal the number of rows of the second matrix.
2. The matrices must have the same dimensions.
3. The matrices must have the same number of rows, but not columns.
4. There is no rule. Matrix addition and subtraction is always possible.
Evaluate. $[(2,-3), (-4,2)] - [(-1,-5), (-3,2)]$
1. $[(3,2),(-7,4)]$
2. $[(-3,2),(-7,4)]$
3. $[(3,2),(-1,0)]$
4. None of the above
For $A = [[16, 8, 32], [4, 0, 12], [8, 24, 20]]$, find $1/4 A$.
1. $[[4, 2, 8],[4, 0, 12], [8, 24, 20]]$
2. $[[ 4, 8, 32],[1, 0, 12],[2,24,20]]$
3. $[[4,2,8],[1,0,3],[2,6,5]]$
4. $"Does not exist (because of 0 in matrix)"$
Evaluate. $[(2, -3) , (-4, 2)]$ + $[ (-1, -5), ( 3, -2) ]$
1. $[(-1, -8), (-1, 0)]$
2. $[(1, -8), (-1,0)]$
3. $[(1, -8), (-7, 0)]$
4. None of the above
Evaluate. $[[1,2],[3,4]]+[[1,2],[3,4]]$
1. $[[2,4],[6,8]]$
2. $[[2,8],[6,4]]$
3. $[[8,2],[6,4]]$
State the dimensions of matrix $F$ if $F=[[0,1,0],[2,-4,2],[4,-8,4],[8,-16,8]]$ .
1. $16xx8$
2. $2xx2xx3$
3. $4xx3$
4. $3xx4$
Evaluate, if possible.
$[[3,4,8],[1,3,1]] + [[6,1],[9,2],[3,4]]$
1. $[[9,2],[13,5],[11,5]]$
2. $"Not possible"$
3. $[[9,5],[10,5]]$
4. $[[7,4],[12,6],[4,12]]$
A square matrix A is NOT invertible (does not have an inverse) if which of the following is true?
1. Matrix A is the identity matrix
2. $A_{1,1} < 0$
3. Matrix A has any elements equal to zero
4. $det(A) = 0$
Find the solution of the following matrix equation $[[1,5],[1,6]][[x],[y]]=[[-4],[-5]]$.
1. $(1,-1)$
2. $(1,1)$
3. $(0,1)$
4. $(-1,-1)$
Evaluate, if possible. $[[-5,7],[6,8]] - [[4,0,-2],[9,0,1]]$
1. $[[-9,7],[-3,8]]$
2. $[[13,-7],[3,-8]]$
3. $[[-9,7,4],[-3,8,-13]]$
4. Impossible
Find the product, if possible. $[[2,0],[-3,5],[1,4]]*[[3],[-2]]$
1. $[[6,-19,-5]]$
2. $[[6],[-19],[-5]]$
3. $[[5,-5],[0,3]]$
4. Impossible
Find the inverse of the matrix, if it exists.

$[[-4,-2],[7,8]]$
1. $"Does Not Exist"$
2. $[[4/9,1/9],[-7/18,-2/9]]$
3. $[[2/9,1/9],[-7/18,-4/19]]$
4. $[[-4/9,-1/9],[7/18,2/9]]$
Which of the following can you not do when solving a system of equations using matrices?
2. Switch two rows
3. Add a constant to a row
4. Multiply a row by a constant
Evaluate the determinant using diagonals.

$[[-5,-6,7],[4,0,5],[-3,8,2]]$
1. $562$
2. $-80$
3. $26$
4. $-561$
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