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The equation of the locus of z such that $\bigg|\large\frac{z-i}{z+i} \bigg|$$=2$ Where $z=x+iy$ is a complex number, is
\[\begin {array} {1 1} (a)\;3x^2+3y^2+10y-3=0 & \quad (b)\;3x^2+3y^2+10y+3=0 \\ (c)\;3x^2-3y^2-10y-3=0 & \quad (d)\;x^2+y^2-5y+3=0 \end {array}\]
jeemain
eamcet
math
2006
q21
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Nov 5, 2013
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meena.p
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$(b)\;3x^2+3y^2+10y+3=0$
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Nov 7, 2013
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pady_1
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