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If veca,vecb,vecc are three non zero vec...

If `veca,vecb,vecc` are three non zero vectors (no two of which are collinear) such that the pairs of vectors `(veca+vecb,vecc) and (vecb+vecc,veca)` are colliner, then what is the value of `veca+vecb+vecc`? (A) `veca` is parrallel to vecb` (B) `vecb` (C) `vecc` (D) `vec0`

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