Question

Let P=2-i Q=-2+i then Re(PQ/conjugate of P) is

Answer 1

Answer:

Let P=2-i Q=-2+i then Re(PQ/conjugate of P) is

Answer 2

(a

2

−i

2

)

2

[∴i

3

=−1]

⇒p

2

+q

2

=

4a

2

+1

(a

2

+1)

2

hence proved.