Matrices Determinants

Using determinants, find the area of the triangle whose vertices are (0, 0), (4, 3) and (8, 0).

• 12

• 21

• 24

• NONE OF THE ABOVE

If A is a skew-symmetric matrix of order 3, write the value of 𝑑𝑒𝑡(𝐴).

• 0

• 1

• 2

• 3

        If A is a square matrix such that 𝐴(𝑎𝑑𝑗 𝐴)  =  8𝐼, where I denotes the identity matrix of the same order, then find the value of|𝐴|.

• 8

• 64

• 2

• NONE OF THESE

• 1

• 2

• 3

• 0

What is the formula for the determinant of a 2x2 matrix?

• ad-bc

• ab-cd

• ad+bc

• (a+d)(b+c)

What is the determinant of this matrix?

• 0

• 24

• -24

• -12

Will this matrix have an inverse?

• Yes

• No

• Unable to Determine

Which option below correctly shows the steps to find the inverse of this matrix?

• 
• 
• 
• No Inverse Exists

Find the inverse of the matrix.

• 
• 
• 
• No Inverse Exists