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Question

Volume of parallelopiped whose coterminous edges are given by u=^i+^j+λ^k,v=^i+^j+3^k and w=2^i+^j+^k is 1 cu. unit. If θ be the angle between the edges u and w, then cosθ can be:

A
766
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B
57
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C
763
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D
533
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