1.

If `|z-2-i|=|z|sin(pi/4-a r g z)|` , where `i=sqrt(-1)` ,then locus of z, isA. a pair of straing linesB. circleC. parabolaD. ellispe

Answer» Correct Answer - C
We have,
`|(x-2)+i(y-1)|=|z||(1)/(sqrt2)costheta-(1)/(sqrt2)sintheta|`
where `theta =arg z`.
`sqrt((x-2)^(2)+(y-1)^(2))=(1)/(sqrt2)|x-y|`,
which represents a parabola


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