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If ` vec a\ a n d\ vec b` are two vectors of the same magnitude inclined at angle of `30^0` such that ` vec adot vec b=3,\ evaluate \ | vec a|,\ | vec b|`

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If vec a and vec b are two vectors of the same magnitude inclined at an angle of 30^0 such that vec adot vec b=3, find | vec a|,| vec b| .

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