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यदि सदिश `vec(A)` तथा `vec(B)` परस्पर लंबवत हो तो सही कथन है ।A. `vec(A)*vec(B)=0`B. `vec(A)xxvec(B)=0`C. `vec(A)+vec(B)=0`D. `vec(A)-vec(B)=0`

Answer» Correct Answer - A


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