`S` is a circle having the center at `(0,a)` and radius `b(b

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

Consider a family of circles passing through two fixed points A=(2,6) and B=(4,5). Also S_(1) is the circle having centre (1,2) and radius equal to 3. The angle between the pair of tangent drawn from the point (4,5) to the circle S_(1) is

Form a differential equation of family of all circles having center on the x - axis and radius 2 units.

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

A circle touches the x -axis and also touches the circle with center (0,3) and radius 2. The locus of the center

Find the equation of the circle with center (-3,2) and radius 4

A circle touches the x-axis and also thouches the circle with center (0, 3) and radius 2. The locus of the center of the circle is a circle (b) an ellipse a parabola (d) a hyperbola

Equation of circle with centre (-a,-b) and radius sqrt(a^(2)-b^(2)) is