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RUET admission questions 2009-10 (Rajshahi University of Engineering & Technology)

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  1. 1."a" এর কোন মানের জন্য ভেক্টর ai^−2j^+k^a\hat{i} - 2\hat{j} + \hat{k} এবং 2ai^−j^−4k^2a\hat{i} - \hat{j} - 4\hat{k} একে অপরের সাথে লম্ব হবে?

    1. A.3, 1
    2. B.2, 4
    3. C.−2,1-2, 1
    4. D.3, 2
    5. E.1, 5
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