The coordinates of a point on the line x=4y+5, z=3y-6 at a distance 326 from the point (5,0,−6) are
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a
(17,3,3)
b
(- 7, 3, - 15)
c
(-17,-3,-3)
d
(7, - 3, 15)
answer is A.
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Detailed Solution
Line is x−54/26=y1/26=z+63/26. A point on this line at a distance 326 from (5, 0, - 6) is ±lr,±mr,±nr= (5 +(3 x 4), 3, - 6+ 9) = (17, 3, 3) or (- 7, - 3, - 15).