(i) It is given in the question that,

z₁ = 2 – 1 and z₂ = - 2 + i

Now, we have:

z₁z₂ = (2 – i) (- 2 + i)

= - 4 + 2i + 2i – i^2

= - 4 + 4i – (- 1)

= - 3 + 4i

z₁ = 2 + i

∴

Now, by multiplying numerator and denominator by (2 – i) we get:

=

=

=

=

Now, on comparing the real parts we get:

(ii) We have,

=

=

Now, on comparing the imaginary parts we get: