document.write( "Question 460760: Show that if s=(v1,v2,v3) is a linearly dependent set of vectors in a vector space V, and v4 is any vector in V that is not in S, then {v1,v2,v3,v4} is also linearly dependent \n" ); document.write( "
Algebra.Com's Answer #316071 by robertb(5830)\"\" \"About 
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Let S = { \"v%5B1%5D\", \"v%5B2%5D\", \"v%5B3%5D\" } be a linearly dependent set of vectors in V.\r
\n" ); document.write( "\n" ); document.write( "This means that there are scalars \"c%5B1%5D\", \"c%5B2%5D\", and \"c%5B3%5D\", not all of them zero, such that \"c%5B1%5D%2Av%5B1%5D+%2B+c%5B2%5D%2Av%5B2%5D+%2B+c%5B3%5D%2Av%5B3%5D+=+theta\". But then, we would also have \"c%5B1%5D%2Av%5B1%5D+%2B+c%5B2%5D%2Av%5B2%5D+%2B+c%5B3%5D%2Av%5B3%5D+%2B+0%2Av%5B4%5D+=+theta\", letting \"c%5B4%5D+=+0\"; and not all of \"c%5B1%5D\", \"c%5B2%5D\", \"c%5B3%5D\", and \"c%5B4%5D\" are equal to zero. Hence { \"v%5B1%5D\", \"v%5B2%5D\", \"v%5B3%5D\" , \"v%5B4%5D\" } is also a linearly dependent set.
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