The point P lies on the line which is parallel to the vector 2i+j-k and which passes through the point with position vector i+j+2k. The point Q lies on another line which is parallel to the vector i+j-2k and which passes through the point with position vector i+j+4k. The line PQ is perpendicular to both these lines. Find a vector equation of the line PQ and the coordinates of the mid-point PQ.(adsbygoogle = window.adsbygoogle || []).push({});

Can anyone help?

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# Find vector defined by two points on two separate lines

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