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Grade 12th passAnalytical Geometry

Please prove that question 17
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........... ............

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Profile image of Sanjay Singh
6 Years agoGrade 12th pass
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1 Answer

Profile image of Aditya Gupta
ApprovedApproved Tutor Answer6 Years ago
given 9a^2+b^2+6ab= c^2
or (3a+b)^2= c^2
or 3a+b= ± c
case 1: 3a+b= – c
or a*3 + b*1 + c= 0
in this case obviously the line passes through the fixed point (3, 1)
case 2:
3a+b= c
or a*(–3) + b*(–1) + c= 0
in this case obviously the line passes through the fixed point (–3, –1)
kindly approve :)