If z(1), z(2),z(3),are three complex nu...

If `z_(1), z_(2),z_(3)`,are three complex numbers, prove that `z_(1).Im(barz_(2)z_(3))+z_(2).Im(barz_(3)z_(1))+z_(3)Im(bar z_(1)z_(2))=0`
where `Im(W)`= imaginary part of W,where W is a complex number.

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