Through point `P(-1,4)`, two perpendicular lines are drawn which intersect x-axis at Q and R. find the locus of incentre of `Delta PQR`.

A pair of perpendicular lines passing through P(1.4) intersect x-axis at Q and R, then the locus of incentre of DeltaPQR is

Through the point P(3,4) a pair of perpendicular lines are dranw which meet x-axis at the point A and B. The locus of incentre of triangle PAB is

Through the point P(3,4) a pair of perpendicular lines are dranw which meet x-axis at the point A and B. The locus of incentre of triangle PAB is

From a point P perpendicular tangents PQ and PR are drawn to ellipse x^(2)+4y^(2) =4 , then locus of circumcentre of triangle PQR is

From a point P perpendicular tangents PQ and PR are drawn to ellipse x^(2)+4y^(2) =4 , then locus of circumcentre of triangle PQR is

From a point P perpendicular tangents PQ and PR are drawn to ellipse x^(2)+4y^(2) =4 , then locus of circumcentre of triangle PQR is

A sphere of radius 1 unit passes through O and cuts axis in P,Q,R then locus C of centroid of Delta PQR is

A line is drawn from the point P(1,1,1)and perpendicular to a line with direction ratios, (1,1,1) to intersect the plane x+2y+3z=4 at Q. The locus of point Q is