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If the foot of the perpendicular drawn from the point (1, 0, 3) on a line passing through (∝, 7, 1) is , then ∝ is equal to ________.
    Correct answer is '4'. Can you explain this answer?
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    If the foot of the perpendicular drawn from the point (1, 0, 3) on a l...

    Direction ratios of PQ are:


    Direction ratios of line L are:

    ∴ PQ is perpendicular to line L.
    ∴ 2(3∝ - 5) + 7 × 14 + (-14) × 8 = 0
    ∴ ∝ = 4
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    If the foot of the perpendicular drawn from the point (1, 0, 3) on a line passing through (∝, 7, 1) is , then ∝is equal to ________.Correct answer is '4'. Can you explain this answer?
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