TS EAMCET 11-Sep-2020 Shift 2 Solved Paper

Section: Mathematics
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Question : 43 of 160
 
Marks: +1, -0
When the coordinate axes are rotated through an angle θ in anti clock wise direction, if the transformed equation of x2+y2+2xy+2x+6y+1=0 is
(2+3)X2+2XY+(23)Y2+aX+bY+2=0
, then 3ab=
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