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anonymous
 one year ago
[4 1 5]
A=[3 1 9]
[3 3 15]
Observe that the third column of A is 2 times the first column plus 3 times the second column. Use this information to find a nontrivial solution to Ax = 0
anonymous
 one year ago
[4 1 5] A=[3 1 9] [3 3 15] Observe that the third column of A is 2 times the first column plus 3 times the second column. Use this information to find a nontrivial solution to Ax = 0

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Loser66
 one year ago
Best ResponseYou've already chosen the best response.0I don't know how the logic on it. I solve it as usual and get the result (2, 3,1). Then I tried to link to what they hint. \(Column_3 = 2~Column_1+3~Column_2\), hence \(C_3 + 2C_13C_2=0\) Reorder it , we have \(2C_1 3C_2 +C_3=0\) and observe that the coefficient of them is our solution \(\left[\begin{matrix}2\\3\\1\end{matrix}\right]\)
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