CUET Level - II JEE Mock Test - 2(Maths)

• reflexive and symmetric

• reflexive and transitive

• symmetric and transitive

• reflexive but neither symmetric nor transitive

• 32

• 16

• 8

• 4

• a null matrix

• a unit matrix

• -A

• A

• -I

• 2I

• I

• 0

If A,B are two square matrices such that AB=A and BA=B, then

• A,B are idempotent

• only A is idempotent

• Only b is idempotent

• None of these

• a symmetric matrix

• a skew-symmetric matrix

• neither symmetric nor skew symmetric

• None of these

If A and B are two skew symmetric matrices of order n, then

• AB is a skew symmetric matrix

• AB is a symmetric matrix

• AB is a symmetric if A and B commute

• None of these

• Contains two elements

• Contains more than two elements

• Is an empty set

• Is a singleton

• 3

• -2

• 0

• -3