NDA || Maths || Matrices_&_Determinant_Quiz

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Question 1

If  and A² – kA – I₂ = O, where I₂ is the 2 × 2 identity matrix, then what I the value of k?

• A4
• B-4
• C8
• D-8

Question 2

 = ?

• A
• B
• C
• D

Question 3

Find the inverse of  where (ad – bc)  0

• A
• B
• C
• D

Question 4

If A=

• AA^-1=A²
• BA^-1=
• CA^-1=A³
• DNone of the above

Question 5

For what value of x the given matrix A = is a singular matrix.

• A14/5
• B1
• C4/3
• D8/14

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