If `|z|=5,` then the locus of `-1 + 2z` is (A) a circle having center (2,0) (B) a circle having center `(-1,0)` (C) a circle having radius 5 (D) a circle having radius 9

If |z|=2, then locus of -1+5z is a circle whose centre is

If |z+2+3i|=5 then the locus of z is (A) a circle with the (2,3) and radius 25 (B) a circle with the (-2,-3) and radius 25 (C) a circle with the (2,3) and radius 5 (D) a circle with the (-2,-3) and radius 5

Equation of circle passing through (-2,0),(4,0) , and having radius 5, is

If |z|lt1, then 1+2z lies (A) on or inside circle having center at origin and radius 2 (B) outside the circle having center at origin and radius 2 (C) inside the circle having center at (1,0) and radius 2 (D) outside the circle having center at (1,0) and radius 2.

If the length of the normal for each point on a curve is equal to the radius vector,then the curve (a) is a circle passing through origin (b) is a circle having centre at origin and radius 0 (c) is a circle having centre on x-axis and touching y-axis (iv) is a circle having centre on y-axis and touching x-axis

What is the diameter of the circle having 3 cm radius?

The equation of the circle passing through (2,0) and (0,4) and having minimum radius is

If z=(3)/(2+cos theta+isin theta theta) then locus of z is straight line a circle having center on the y- axis a parabola a circle having center on the x- axis

The ends of a quadrant of a circle have the coordinates (1,3) and (3,1). Then the center of such a circle is