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If-z-x-jy-detemine-the-cartesian-equation-of-the-locus-of-the-point-z-which-moves-in-the-Argrand-diagram-so-that-z-j2-2-z-j2-2-40-




Question Number 15206 by tawa tawa last updated on 08/Jun/17
If   z = x + jy,  detemine the cartesian equation of the locus of the point   z which moves in the Argrand diagram so that  ∣z + j2∣^2  + ∣z − j2∣^(2 ) = 40
$$\mathrm{If}\:\:\:\mathrm{z}\:=\:\mathrm{x}\:+\:\mathrm{jy},\:\:\mathrm{detemine}\:\mathrm{the}\:\mathrm{cartesian}\:\mathrm{equation}\:\mathrm{of}\:\mathrm{the}\:\mathrm{locus}\:\mathrm{of}\:\mathrm{the}\:\mathrm{point}\: \\ $$$$\mathrm{z}\:\mathrm{which}\:\mathrm{moves}\:\mathrm{in}\:\mathrm{the}\:\mathrm{Argrand}\:\mathrm{diagram}\:\mathrm{so}\:\mathrm{that} \\ $$$$\mid\mathrm{z}\:+\:\mathrm{j2}\mid^{\mathrm{2}} \:+\:\mid\mathrm{z}\:−\:\mathrm{j2}\mid^{\mathrm{2}\:} =\:\mathrm{40} \\ $$

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