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[" The unit vectors orthogonal to the vector "-hat i+2hat jmath+2hat k" and "],[" making equal angles with the "X" and "Y" axes is (are) "],[[" (a) "+-(1)/(3)(2hat i+2hat j-hat k)," (b) "+-(1)/(3)(hat i+j-hat k)],[" (c) "+-1/3(2hat i-2hat j-hat k)," (d) none of these "]]

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