JEE Main 2007Annual, Paper 1MathematicsMediumVector Algebra184× since 2002If u^\widehat uu and v^\widehat vv are unit vectors and θ\thetaθ is the acute angle between them, then 2u^×3v^2\widehat u \times 3\widehat v2u×3v is a unit vector for :AOption A. no value of θ\thetaθBOption B. exactly one value of θ\thetaθCOption C. exactly two values of θ\thetaθDOption D. more than two values of θ\thetaθCheckSkip · show solution