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Find the standard equation of the circle which satisfies the given conditions

 

center at (5,6), through (9,4)

center at (-2,3), tangent to the line y=8

center at (-2,3), tangent to the line x= -10

center in the third quadrant, tangent to both the x-axis and y-axis, radius 7

a diameter with endpoints (-9,2) and (15,12)

concentric with x^2+y^2+2x-4y=5, radius is 7

 
 Jan 19, 2021

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