The point of intersection of the line joining the points $(3, 4, 1)$ and $(5, 1, 6)$ and the $xy$-plane is

  • A
    $(13, 23, 0)$
  • B
    $\left( \frac{13}{5}, \frac{23}{5}, 0 \right)$
  • C
    $(-13, 23, 0)$
  • D
    $\left( -\frac{13}{5}, \frac{23}{5}, 0 \right)$

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Find the coordinates of the foot of the perpendicular drawn from the point $A(1, 0, 3)$ to the line joining the points $B(4, 7, 1)$ and $C(3, 5, 3)$.

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