MathematicsMedium202×since 2002Q5724Let the volume of a parallelopiped whose coterminous edges are given by u→=i^+j^+λk^\overrightarrow u = \widehat i + \widehat j + \lambda \widehat ku=i+j+λk, v→=i^+j^+3k^\overrightarrow v = \widehat i + \widehat j + 3\widehat kv=i+j+3k and w→=2i^+j^+k^\overrightarrow w = 2\widehat i + \widehat j + \widehat kw=2i+j+k be 1 cu. unit. If θ\thetaθ be the angle between the edges u→\overrightarrow uu and w→\overrightarrow ww , then cosθ\thetaθ can be :A763{7 \over {6\sqrt 3 }}637B766{7 \over {6\sqrt 6 }}667C57{5 \over 7}75D533{5 \over {3\sqrt 3 }}335Check answerSkip