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Co - ordinate Geometry Circles

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The equations of the normals to the circle x²+y²-8x-2y+12=0 at the points whose ordinate is –1, will be

A. 2x+y+7=0,2x+y-9=0

B. 2x+y-7=0,2x+y+9=0

C. 2x-y-7=0,2x+y-9=0

D. 2x-y+7=0,2x-y+9=0

E. None of the above

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Correct choice: C

Explanation:

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Eamcet Mathematics Co - ordinate Geometry Circles

Eamcet Mathematics
Co - ordinate Geometry Circles