Home
Class 11
MATHS
If OA and OB are the tangents from te o...

If OA and OB are the tangents from te origin to the circle `x^2+y^2 +2gx+2fy+c=0` and C is the centre of the circle, the area of the quadrilateral OACB is

A

1) `1/2sqrt(c(g^2+f^2-c))`

B

2) `sqrt(c(g^2+f^2-c))`

C

3) `csqrt((g^2+f^2-c))`

D

4) `sqrt(g^2+f^2-c)/c`

Text Solution

Verified by Experts

Promotional Banner

Similar Questions

Explore conceptually related problems

The length of the tangent from the origin to the circle 3x^2 +3y^2-4x-6y+2=0 is

The equations of the tangents drawn from the origin to the circle x^2+y^2-2rx-2hy+h^2=0 are

The length of the tangent from the point (-3,8) to the circle x^2 +y^2-8x+2y+1=0 is

The length of tangent from the point (2,-3) to the circle 2x^2 +2y^2=1 is

Two tangents PQ and PR drawn to the circle x^2 +y^2-2x-4y-20=0 from point P(16,7). If the centre of the circle is C, then the area of quadrilateral PQCR will be

Find the centre and radius of the circle x^2+y^2=25

If the circle x ^(2) + y^(2) + 2gx + 2fy+ c=0 touches X-axis, then

Let the tangents drawn from the origin to the circle, x^2 +y^2-8x-4y+16=0 touch it at the points A and B. The (AB)^2 is equal to

The equations of the tangents drawn from the point (0,1) to the circle x^1+y^2-2x+4y=0 are

If the radius of the circel x ^(2) + y ^(2) + 2gx+ 2fy +c=0 be r, then it will touch both the axes, if