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A pipe runs from the point P(3, -2, 4) to the point… | StemPy Lab

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A pipe runs from the point P(3, -2, 4) to the point Q(4, 2, 12), with coordinates in metres. Which set gives the direction cosines of the line PQ in the direction from P to Q?

MathematicsEasyHigh School (11–12)Vectors and Three-Dimensional Geometry › Three-Dimensional Geometry A-Level IB

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A pipe runs from the point $P(3, -2, 4)$ to the point $Q(4, 2, 12)$ , with coordinates in metres. Which set gives the direction cosines of the line $PQ$ in the direction from $P$ to $Q$ ?

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← A surveyor writes down four sets of three numbers as possible direction cosines of a line in the plan of a hall. Only one of the sets can be the direction cosines of a real line. Which one is it?A line is given by r = (2î - ĵ + 3k̂) + λ(4î + 5ĵ - 2k̂). Which of these is the same line in Cartesian form? →

More onVectors and Three-Dimensional Geometry › Three-Dimensional Geometry

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