Q. 185.0( 4 Votes )

# If z1,

Given z1 and z2 are conjugate complex numbers.

z2 = z̅ 1 = |z|/2pi is,

he negative side of the real axis

= r1 (cos θ1 - i sin θ1)

= r1 [cos (-θ1) + I sin (-θ1)]

Similarly, z3 = r2 (cos θ2 - i sin θ2)

z4 = r2 [cos (-θ2) + I sin (-θ2)]

= θ1 – (-θ2) + (-θ1) – θ2

= θ1 + θ2 – θ1 – θ2

= 0

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