how to find the equation of chord when equation of circle and point is given

Question

1. euation of chord AB of circle passing through point (2,2)  such that pA /PB =3 IS GIVEN BY
2. if OA and OB ARE TANGENTS FROM THE ORIGIN TO THE CIRCLE (GENERAL EQUATION ) AND C IS THE CENTRE OF THE CIRCLE THAN THE AREA OF QUADRILATERAL OACB IS
3.  

Answer 1

?????????????????????? "passing thru" ????????????????

???? yu must meen yu draw a kers that GO THRU a point

?????????????? "equashun for a chord" ???????????

draw thangs so the chord=horizontal line, then all yu need is leng & start point

????????????????? oa, ob, ab, pa, pb  ????????????

??????????????????? "Sentree" ??????????????

me assume that be SENTER av serkel