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Grade: 11

                        

If 4a^2-5b^2+6a+1=0 and the line ax+by+1=0 touches a fixed circle thenA) centre of circle is at (3,0)B)radii of circle is root5C)the radii of circle is root3D)the circle passes through (1,1)Ans. A, B, D

3 years ago

Answers : (1)

Deepak Kumar Shringi
askIITians Faculty
4403 Points
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2 years ago
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