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[" If "vec a" and "vec b" are unit vecto...

[" If "vec a" and "vec b" are unit vectors such that "(vec a+vec b)*(2vec a+3vec b)times(3vec a-2vec b)=vec 0" ,then "],[[" and "vec b" is "," b."vec m2," c."pi]],[[" a."," b."pi2," c."pi," d.inde "vec x]]

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