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Let the foot of the perpendicular from the point (1, 2, 4) on the line 3 1 z 2 1 y 4 2 x + = − = + be P. Then the distance of P from the plane 3x + 4y + 12z + 23 = 0 is-

1. 5
2. 13 50
3. 4
4. 13 63

Correct answer: 5

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