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Q.

The normal to the circle given x2+y2-6x+8y-144=0 at (8,8) meets the circle again at the point

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a

(2,- 16

b

(2,16)

c

(-2,16)

d

(-2,-16)

answer is D.

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Detailed Solution

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Centre of the circle = C (3, - 4). Given point,4 = (8, 8)

Let B be at point at with the normal meets the circle again.

Then midpoint AB=CB=2C-A=2(3,-4)-(8,8)=(-2,-16).

 

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