let <.,.> be the standard inner product on R^{n} . Let T: R^{n}→R^{n}be a linear transformation such that <T(v),v>=0 for all vƐ R^{n}. then A) T(v)=0 for all vƐ R^{n }B) T is necessarily anti symmetric C) T is necessarily symmetric D) det T= 0.
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