Q.
M is the foot of the perpendicular drawn from a point P(-1,7,-5) on the .r y-plane. The coordinates of point Mare
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a
(-1,7,0)
b
(1,-7,0)
c
(7, 5,0)
d
(-1,6,0)
answer is A.
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Detailed Solution
We know that, on the xy - plane z = 0. Hence, the coordinates of the points L are (-1, 7 ,0).