Question

Choose the correct alternative:
If A + I = `[(3, -2),(4, 1)]`, then (A + I)(A – I) is equal to

विकल्प

• `[(-5, -4),(8, -9)]`

• `[(-5, 4),(-8, 9)]`

• `[(5, 4),(8, 9)]`

• `[(-5, -4),(-8, -9)]`

Answer 1

`[(-5, -4),(8, -9)]`