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Question

The coordinates of the fixed point of the chord cut off by 2x−5y+18=0 by the circle x2+y2−6x+2y−54=0 are

A
(1,4)
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B
(2,4)
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C
(4,1)
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D
(1,1)
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Solution

The correct option is B (1,4)
The point should satisfy the equation 2x5y+18=0
Hence
Substituting (1,4) we get 18+18=0 ...(i)
Substituting (2,4) we get 16+18=20 ...(ii)
Substituting (4,1) we get 3+18=210 ...(iii)
Substituting (1,1) we get 3+18=150 ...(iv)
Hence only possible answer is i that is option A.

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