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If z₁, z₂and z₃, z₄are two pairs of conjugate complex numbers, then $\arg (\frac{z_{1}}{z_{4}}) + \arg (\frac{z_{2}}{z_{3}})$ equal

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Correct option is D

arg⁡z1z4+arg⁡z2z3 =arg⁡z1z2z4z3+2kπ=arg⁡z12z32+2kπ=2kπwhere k = 0 or 1 [ z1= z3 = i, gives answer 2p and z1 = z3 = 1, gives answer 0]

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If z1, z2 and z3, z4 are two pairs of conjugate complex numbers, then arg⁡z1z4+arg⁡z2z3 equal

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If z₁, z₂and z₃, z₄are two pairs of conjugate complex numbers, then $\arg (\frac{z_{1}}{z_{4}}) + \arg (\frac{z_{2}}{z_{3}})$ equal