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If OA and OB are the tangents from the origin to the circle $x 2 + y 2 + 2 g x + 2 f y$ $+ c = 0$ and C is the centre of the circle, the area of the quadrilateral OACB is $c > 0$

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12 c g 2 + f 2 − c

c g 2 + f 2 − c

c g 2 + f 2 − c

g 2 + f 2 − c c

answer is B.

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Detailed Solution

$the area of the quadrilateral OACB is given as,$ Area= $r s 11$

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