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question mark

A point A(2,1) is outside the circle x2+ y2+2gx+2fy+c=0 and AP, AQ are tangents to the circle. The equation of the circle circumscribing the triangle APQ is?

Explain your answer.

Pranjal K , 11 Years ago
Grade upto college level
anser 1 Answers
MuraliKrishna Medavaram

Last Activity: 11 Years ago

Here A,P,Q are concyclic with the centre of the circle ‘C’

As CAP is a right angle triangle with right angle at P circumcircle of triangle APQ is the circle with diameter as AC. Hence its equation is

please look into the attached file

thanks

regards

M.MURALIKRISHNA

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