The equation of the tangent to the circle `x^2+y^2=25` passing through `(-2,11)` is (a) `4x+3y=25` (b) `3x+4y=38` (c) `24 x-7y+125=0` (d) `7x+24 y=250`

The equation of the tangent to the circle x^(2)+y^(2)-4x+4y-2=0 at (1,1) is

The equation of the image of the circle x^2+y^2+16x-24y+183=0 by the line mirror 4x+7y+13=0 is :

Equation of the diameter of the circle x^2+y^2-2x+4y=0 which passes through the origin is a.x+2y=0 b.x-2y=0 c. 2x+y=0 d. 2x-y=0.

The equation (s) of common tangents (s) to the two circles x^(2) + y^(2) + 4x - 2y + 4 = 0 and x^(2) + y^(2) + 8x - 6y + 24 = 0 is/are

The equation of tangent to the circle x^2 + y^2 - 4x = 0 which is perpendicular to the normal drawn through the origin can be : (A) x=0 (B) x=4 (C) x+y=2 (D) none of these

Find the number of common tangents to the circle x^2 +y^2=4 and x^2+y^2−6x−8y−24=0

The number of common tangents of the circles x^(2)+y^(2)+4x+1=0 and x^(2)+y^(2)-2y-7=0 , is

The equation of the plane through the intersection of the planes x+2y+3z-4=0 and 4x+3y+2z+1=0 and passing through the origin is (a) 17x+14y+11z=0 (b) 7x+4y+z=0 (c) x+14+11z=0 (d) 17x+y+z=0

Suppose a x+b y+c=0 , where a ,ba n dc are in A P be normal to a family of circles. The equation of the circle of the family intersecting the circle x^2+y^2-4x-4y-1=0 orthogonally is (a) x^2+y^2-2x+4y-3=0 (b) x^2+y^2-2x+4y+3=0 (c) x^2+y^2+2x+4y+3=0 (d) x^2+y^2+2x-4y+3=0

A ray of light is incident along a line which meets another line, 7x-y+1 = 0 , at the point (0, 1). The ray isthen reflected from this point along the line, y+ 2x=1 . Then the equation of the line of incidence of the ray of light is (A) 41x + 38 y - 38 =0 (B) 41 x - 38 y + 38 = 0 (C) 41x + 25 y - 25 = 0 (D) 41x - 25y + 25 =0