Find the area of the circle (x + 1)(x + 2) +( y - 1) (y +3) =0.
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Answer:
(x+1)(x+2)+(y-1)(y+3)=0
or. x^2+3x+2+y^2+2y-3=0
or. (x+3/2)^2+(y+1)^2=1+9/4+1= 17/4
or. (x+3/2)^2 +(y+1)^2 = (√17/2)^2
Thus , coordinates of center (-3/2 , -1) and radius of circle is √17/2 units
Area of circle = π.r^2 = π.17/4= 22×17/4= 187/2= 93.5 units ^2. Answer.
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Answered by
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Given: the circle.
To find: the area of the circle.
Solution:
Know that,
Therefore, coordinates of center and radius of circle is units.
Find the area of the circle.
Area of circle
Hence, the area of the circle is .
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