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    Question

    If a line has direction ratios 2, – 1, – 2,

    determine its direction cosines.
    A 2/5, -1/3, -2/3 Correct Answer Incorrect Answer
    B 2/3, -1/3, -1/3 Correct Answer Incorrect Answer
    C 2/3, -1/3, -2/3 Correct Answer Incorrect Answer
    D 2/7, -1/3, -2/3 Correct Answer Incorrect Answer

    Solution

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