If z=x+i y, where i=\sqrt{-1}, then what does the equation z \overline{z}+|z|^{2}+4(z+\overline{z})-48=0 represent? [NDA-II 2021]

UPSC NDA 2 2021 Mathematics Solved Paper

Question : 14 of 120

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If z=x+iy, where i=√−1, then what does the equation zz+|z|2+4(z+z)−48=0 represent?

[NDA-II 2021]

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