Home
Class 11
MATHS
A circle S cuts three circles x^2 +y^2-4...

A circle S cuts three circles `x^2 +y^2-4x-2y+4=0` `x^2 +y^2-2x-4y+1=0` and `x^2 +y^2+4x+2y+1=0` orthogonally. Then the radius of S is

A

`sqrt(29/8)`

B

`sqrt(28/11)`

C

`sqrt(29/7)`

D

`sqrt(29/5)`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

The equation of the tangent at the point (0,3) on the circle which cuts the circles x^2 +y^2-2x+6y=0 , x^2 +y^2-4x-2y+6=0 and x^2 +y^2-12x+2y+3=0 orthogonally is

Find the centre of the circle that passes through the point (1,0) and cutting the circles x^(2) + y ^(2) -2x + 4y + 1=0 and x ^(2) + y ^(2) + 6x -2y + 1=0 orthogonally is

If the lengths of the tangents drawn from P to the circles x ^(2) + y ^(2) -2x + 4y -20=0 and x ^(2) + y^(2) -2x -8y +1=0 are in the ratio 2:1 , then the locus of p is

The circle x ^(2) + y^(2) +4x -4y+4=0 touches

The centres of the circles x ^(2) + y ^(2) =1, x ^(2) + y^(2)+ 6x - 2y =1 and x ^(2) + y^(2) -12 x + 4y =1 are

A common tangent to the circle x^2 +y^2=4 and (x-3)^2+y^2=1 is

The number of common tangents to the circles x^2+y^2-4x-6y-12=0 and x^2+y^2+6x+18y+26=0 , is

If the lengths of the tangents drawn from P to the circles x^2+y^2-2x+4y-20=0 and x^2+y^2-2x-8y+1=0 are in the ratio 2:1 , then the locus of P is