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प्रश्न
The coordinates of the foot of perpendicular drawn from the origin to the plane 2x + y − 2z = 18 are ______
विकल्प
(4, 2, 4)
(−4, 2, 4)
(−4, −2, 4)
(4, 2, −4)
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उत्तर
(4, 2, −4)
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