linear algebra

Express the vector →u below as a sum of two vectors →u1 and →u2, where →u1 is parallel to the vector →v given below, and →u2 is perpendicular to →v. Make sure that the first vector in your sum is →u1 and the second is →u2. Use the square root symbol '√' where needed to give an exact value for your answer.
→v = (3,−1,1)
→u = (−1,−6,−3) = (0,0,0) + (0,0,0) = →u1+→u2
Can someone please help me, I was at this for about an hour..

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asked by catie
  1. can someone please help..

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    posted by catie

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