Question

How is an identity matrix denoted when its order is \[n\]?

विकल्प

• \[k_n\]

• \[A_n\]

• \[I_n\]

• \[O_n\]

Answer 1

An identity matrix of order \[n\] is denoted by \[I_n\]. It may also be denoted simply by \[I\] when the order is understood.