## observe that the second column is the sum of the first and third columns. Find a nontrivial solution of Axequals0 without performing row ope

Question

observe that the second column is the sum of the first and third columns. Find a nontrivial solution of Axequals0 without performing row operations. [Hint: Write Upper A Bold x equals Bold 0 as a vector equation.]xequalsnothing

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2021-11-16T04:05:33+00:00
2021-11-16T04:05:33+00:00 1 Answer
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## Answers ( )

Answer:Think of A = [ a1 a2 a3 ].The text points out that a1 + a3 = a2.Rewrite this as a1 -a2 + a3 = 0.As a matrix equation, Ax = 0 for x = (1, -1, 1).