If and find A^T – B^T.(CBSE 2012)

5

Find x, y, z and t, if

(CBSE 2012)

6

If find x.(CBSE 2012)

8

If A is a square matrix such that A² = A, then write the value of 7A - (I + A)³, where I is an identity matrix.(CBSE 2014)

9

If find the value of x + y.(CBSE 2014)