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If OA and OB are the tangents from the o...

If OA and OB are the tangents from the 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

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

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
B
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MCGROW HILL PUBLICATION-CIRCLES AND SYSTEMS OF CIRCLES -SOLVED EXAMPLES (LEVEL 1 ( SINGLE CORRECT ANSWER TYPE QUESTIONS ))
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