If `A B=Aa n dB A=B ,` then which of the following is/are true? `A` is idempotent b. `B` is idempotent c. `A^T` is idempotent d. none of these

If AB=A and BA=B, then which of the following is/are true? A is idempotent b.B is is idempotent c.A^(T) is idempotent d.none of these

If AB = A and BA = B, then which of the following is not true a)A is idempotent b)B is idempotent c) A^(T) is idempotent d)None of these

In which of the following type of matrix inverse does not exist always? a. idempotent b. orthogonal c. involuntary d. none of these

In which of the following type of matrix inverse does not exist always? a. idempotent b. orthogonal c. involuntary d. none of these

In which of the following type of matrix inverse does not exist always? a. idempotent b. orthogonal c. involuntary d. none of these

In which of the following type of matrix inverse does not exist always? a. idempotent b. orthogonal c. involuntary d. none of these

In which of the following type of matrix inverse does not exist always? a. idempotent b. orthogonal c. involuntary d. none of these

The sum of the idempotent matrices A and B is idempotent if :

If A=x % of y a n d B=y % of x , t h e n which of the following is true? a.A is smaller than B b.A is greater than B. c.Relationship between A and B cannot be determined d.If x is smaller than y, then A is greater than B e.None of these

If A is idempotent matrix A+B=I then B is