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The equation ot the circle concentric w...

The equation ot the circle concentric with `x^(2)+y^(2)+6 x+2 y+1=0` and passing through the point (-2,-1) is

A

`x^(2)+y^(2)+4 x+2 y+5=0`

B

`x^(2)+y^(2)+4 x+2 y+6-0`

C

`x^(2)+y^(2)+6 x+2 y+8=0`

D

`x^(2)+y^(2)+6 x+2 y+9=0`

Text Solution

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The correct Answer is:
D
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HIMALAYA PUBLICATION-CIRCLES-QUESTION BANK
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  9. If two circle (x-1)^(2)+(y-3)^(2)=r^(2) and x^(2)+y^(2)-8x+2y+8=0 inte...

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  12. The intercept on the line y = x by the circle x^2+y^2-2x=0 is AB. Equ...

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  14. If the circles x^2 + y^2 + 2ax + cy+ a = 0 and x^2 + y^2 - 3ax + dy - ...

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  18. If the circles x^2+y^2+2x+2ky + 6=0 and x^2+y^2+2ky+k=0 intersect orth...

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  20. If the tangent at a point P on the circle x^2 + y^2 + 6x + 6y = 2, mee...

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