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Then equation of auxiliary circle of the...

Then equation of auxiliary circle of the ellipse `16x^2 + 25y^2 +32x-100y = 284` is (A) `x^2+y^2+2x-4y-20=0` (B) `x^2+y^2+2x-4y =0` (C) `(x+1)^2+(y-2)^2=400` (D) `(x+1)^2+(y-2)^2=225`

A

`x^(2)+y^(2)+2x-4y-20=0`

B

`x^(2)+y^(2)+2x-4y=0`

C

`(x+1)^(2)+(y-2)^(2)=400`

D

`(x+1)^(2)+(y-2)^(2)=225`

Text Solution

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