Q12 of 307 Page 5

If and show that AB = BA = O_{3 × 3}.

Given, A B

AB ......(1)

BA ......(2)

From equation 1 and 2,

AB = BA

If show that A² = O

If find A²

If and show that AB = BA = O_{3 × 3}.

If and show that AB = A and BA = B.

If and show that AB = BA = O3 × 3.