3-d

Question: The co-ordinates of the point where the line through $P(3,\,4,\,1)$ and $Q(5,1,6)$ crosses the xy-plane are

1) $\frac{3}{5},\frac{13}{5},\frac{23}{5}$

2) $\frac{13}{5},\frac{23}{5},\frac{3}{5}$

3) $\frac{13}{5},\frac{23}{5},0$

4) $\frac{13}{5},0,\,0$

Solution:

Explanation: No Explanation

Line and plane

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