Direction Cosines and Ratios

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  • Q1

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    Answer:

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  • Q2

    Find the direction ratios of the line joining the points (3, -2, 9) and (2, -1, 6).

    Marks:1
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  • Q3

    Write the condition such that two lines with direction ratios < a1, b1, c1 > and < a2, b2, c2 > are parallel.

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  • Q4

    Define direction cosines of a line. Also give relation between them.

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  • Q5

    If direction ratios of a line are < 6, -3, -2 >, find its direction cosines.

    Marks:1
    Answer:

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