find the equation of the circle passing through the point (-3,2) and centre of the circle is (2 ,4)
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radius is
general form of circle equation....
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ATQ,
x=-3,y=2,h=2,k=4
Now,
By standard equation of circle.
(x-h)^2 + (y-k)^2 = r^2
=> r^2 = (-3-2)^2 + (2-4)^2
=> r^2 = (-5)^2 + (-2)^2
=> r^2 = 25 + 4
=> r^2 =29
Now,
By standard equation of circle.
(x-h)^2 +(y-k)^2 = r^2
=> (x-2)^2 + (y-4)^2 =29
=> x^2 + 4 -4x + y^2 +16 -8y -29 = 0
=> x^2 + y^2 -4x -8y - 9 =0
****HOPE YOU UNDERSTAND ****
THANK YOU
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