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Pls see the attachment for the question.
this is a verry good question the length of tangent from a point is (root s11) here in S11 COFFICIENT OF X2 AND Y2 MUST BE 1 so rewright the secondd equation as x2 +y2 -(x/3)-(y/3)-(lambda/3)=0distance from first equation is 2 (root s11)distance from first equation is(1+4-1/3-2/3-(lambda/3))1/2 =(4-(lambda)/3)1/2accordind to given 2/(4-(lambda)/3)½ =4/3by solving above equation we get lamda=21/4PLEEASE APPROVE
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