matrix

Find the number of element a₃₁ from the given matrices

• -1

• 3

• 1

• -2

What is the product of 3X2 and 2X1 matrix ________ matrix

• 3X2 matrix

• 3X1 matrix

• 2X2 matrix

• 3X3 matrix

which one of the following full fee the addition of matrices

• 2x2 and 2x2 matrices

• 3x3 and 3x3 matrices

• 2x2 and 3x3 matrices

• 2x1 and 1x2 matrices

find the scale product of matrix (-3A)

• 
• 
• 

find the determinate of matrices D

• D = 18

• D = -18

• D = -54

• D= 54