1.

If alpha+ibeta=Tan^(-1)(z),z=x+iy and alpha is constant then the locus of z is

Answer»

`x^2+y^2+2xcot2alpha=1`
`COT 2ALPHA.(x^2+y^2)=1+x`
`x^2+y^2+2ytan2alpha=1`
`x^2+y^2+2xsin2alpha=1`

ANSWER :A


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