complex doubt 2

If z1 and z2 are two complex numbers in the argand plane shown..!!
then what does (z2 - z1) represent?

2 Answers

z1=a1+ib1
z2=a2+ib2

so z2-z1= a2-a1 + i (b2-b1)

so it represents the difference in the real part as well as the imaginary part of the two complex numbers z1 and z2.

explain it graphically...
i don't need that ... .

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