Locus the centre of the variable circle touching `|z-4|=1` and the line `Re(z)=0` when the two circles on the same side of the line is (A) a parabola (B) an ellipse (C) a hyperbola (D) none of these

The locus of centre of the circle touching x-axis nad the line y=x is

The locus of the centre of a variable circle touching circle |z|=2 internally and circle |z-4|=1 externally is (A) a parabola (B) a hyperbola (C) a ellipse (D) none of these

Find the locus of the centre of the circle touching the line x+2y=0a n d x=2y

|z-4|+|z+4|=16 where z is as complex number ,then locus of z is (A) a circle (B) a straight line (C) a parabola (D) none of these

Locus of the centre of the circle touching circles |z|=3 and |z-4|=1 externally is (A) a parabola (B) a hyperbola (C) an ellipse (D) none of these

If ordinate PQ of a hyperbola be produced to R so that PR is equal to either of the focal radii of Q , then the locus of R is : (A) a parabola (B) an ellipse (C) a hyperbola (D) a pair of parallel straight lines

The locus of the points of trisection of the double ordinates of the parabola y^2 = 4ax is : (A) a straight line (B) a circle (C) a parabola (D) none of these

|z-4| 0 (b) Re(z) 3 (d) None of these

A parabola is drawn to pass through A and B the ends of a diameter of a given circle of radius a and to have as directrix a tangent to a concentric circle of radius b , the axes being AB and a perpendicular diameter. The locus of the focus of the parabola is a conic which is : (A) a parabola (B) an ellipse (C) a hyperbola which is not a rectangular hyperbola (D) a rectangular hyperbola

The locus of a first degree equation in x,y and z is a (A) straighat line (B) plane (C) sphere (D) none of these